2821000000

素因数分解:

$2^6\times 5^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:93

約数の個数: 392

約数和(自身を含む): 8889886208

約数和(自身を除く): 6068886208

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 31, 32, 35, 40, 50, 52, 56, 62, 64, 65, 70, 80, 91, 100, 104, 112, 124, 125, 130, 140, 155, 160, 175, 182, 200, 208, 217, 224, 248, 250, 260, 280, 310, 320, 325, 350, 364, 400, 403, 416, 434, 448, 455, 496, 500, 520, 560, 620, 625, 650, 700, 728, 775, 800, 806, 832, 868, 875, 910, 992, 1000, 1040, 1085, 1120, 1240, 1250, 1300, 1400, 1456, 1550, 1600, 1612, 1625, 1736, 1750, 1820, 1984, 2000, 2015, 2080, 2170, 2240, 2275, 2480, 2500, 2600, 2800, 2821, 2912, 3100, 3125, 3224, 3250, 3472, 3500, 3640, 3875, 4000, 4030, 4160, 4340, 4375, 4550, 4960, 5000, 5200, 5425, 5600, 5642, 5824, 6200, 6250, 6448, 6500, 6944, 7000, 7280, 7750, 8000, 8060, 8125, 8680, 8750, 9100, 9920, 10000, 10075, 10400, 10850, 11200, 11284, 11375, 12400, 12500, 12896, 13000, 13888, 14000, 14105, 14560, 15500, 15625, 16120, 16250, 17360, 17500, 18200, 19375, 20000, 20150, 20800, 21700, 21875, 22568, 22750, 24800, 25000, 25792, 26000, 27125, 28000, 28210, 29120, 31000, 31250, 32240, 32500, 34720, 35000, 36400, 38750, 40000, 40300, 40625, 43400, 43750, 45136, 45500, 49600, 50000, 50375, 52000, 54250, 56000, 56420, 56875, 62000, 62500, 64480, 65000, 69440, 70000, 70525, 72800, 77500, 80600, 81250, 86800, 87500, 90272, 91000, 96875, 100000, 100750, 104000, 108500, 109375, 112840, 113750, 124000, 125000, 128960, 130000, 135625, 140000, 141050, 145600, 155000, 161200, 162500, 173600, 175000, 180544, 182000, 193750, 200000, 201500, 203125, 217000, 218750, 225680, 227500, 248000, 250000, 251875, 260000, 271250, 280000, 282100, 284375, 310000, 322400, 325000, 347200, 350000, 352625, 364000, 387500, 403000, 406250, 434000, 437500, 451360, 455000, 484375, 500000, 503750, 520000, 542500, 564200, 568750, 620000, 644800, 650000, 678125, 700000, 705250, 728000, 775000, 806000, 812500, 868000, 875000, 902720, 910000, 968750, 1000000, 1007500, 1085000, 1128400, 1137500, 1240000, 1259375, 1300000, 1356250, 1400000, 1410500, 1421875, 1550000, 1612000, 1625000, 1736000, 1750000, 1763125, 1820000, 1937500, 2015000, 2170000, 2256800, 2275000, 2518750, 2600000, 2712500, 2821000, 2843750, 3100000, 3224000, 3250000, 3390625, 3500000, 3526250, 3640000, 3875000, 4030000, 4340000, 4513600, 4550000, 5037500, 5425000, 5642000, 5687500, 6200000, 6296875, 6500000, 6781250, 7000000, 7052500, 7750000, 8060000, 8680000, 8815625, 9100000, 10075000, 10850000, 11284000, 11375000, 12593750, 13000000, 13562500, 14105000, 15500000, 16120000, 17631250, 18200000, 20150000, 21700000, 22568000, 22750000, 25187500, 27125000, 28210000, 31000000, 35262500, 40300000, 43400000, 44078125, 45500000, 50375000, 54250000, 56420000, 70525000, 80600000, 88156250, 91000000, 100750000, 108500000, 112840000, 141050000, 176312500, 201500000, 217000000, 282100000, 352625000, 403000000, 564200000, 705250000, 1410500000, 2821000000]

約数ペア:

[(1, 2821000000), (2, 1410500000), (4, 705250000), (5, 564200000), (7, 403000000), (8, 352625000), (10, 282100000), (13, 217000000), (14, 201500000), (16, 176312500), (20, 141050000), (25, 112840000), (26, 108500000), (28, 100750000), (31, 91000000), (32, 88156250), (35, 80600000), (40, 70525000), (50, 56420000), (52, 54250000), (56, 50375000), (62, 45500000), (64, 44078125), (65, 43400000), (70, 40300000), (80, 35262500), (91, 31000000), (100, 28210000), (104, 27125000), (112, 25187500), (124, 22750000), (125, 22568000), (130, 21700000), (140, 20150000), (155, 18200000), (160, 17631250), (175, 16120000), (182, 15500000), (200, 14105000), (208, 13562500), (217, 13000000), (224, 12593750), (248, 11375000), (250, 11284000), (260, 10850000), (280, 10075000), (310, 9100000), (320, 8815625), (325, 8680000), (350, 8060000), (364, 7750000), (400, 7052500), (403, 7000000), (416, 6781250), (434, 6500000), (448, 6296875), (455, 6200000), (496, 5687500), (500, 5642000), (520, 5425000), (560, 5037500), (620, 4550000), (625, 4513600), (650, 4340000), (700, 4030000), (728, 3875000), (775, 3640000), (800, 3526250), (806, 3500000), (832, 3390625), (868, 3250000), (875, 3224000), (910, 3100000), (992, 2843750), (1000, 2821000), (1040, 2712500), (1085, 2600000), (1120, 2518750), (1240, 2275000), (1250, 2256800), (1300, 2170000), (1400, 2015000), (1456, 1937500), (1550, 1820000), (1600, 1763125), (1612, 1750000), (1625, 1736000), (1736, 1625000), (1750, 1612000), (1820, 1550000), (1984, 1421875), (2000, 1410500), (2015, 1400000), (2080, 1356250), (2170, 1300000), (2240, 1259375), (2275, 1240000), (2480, 1137500), (2500, 1128400), (2600, 1085000), (2800, 1007500), (2821, 1000000), (2912, 968750), (3100, 910000), (3125, 902720), (3224, 875000), (3250, 868000), (3472, 812500), (3500, 806000), (3640, 775000), (3875, 728000), (4000, 705250), (4030, 700000), (4160, 678125), (4340, 650000), (4375, 644800), (4550, 620000), (4960, 568750), (5000, 564200), (5200, 542500), (5425, 520000), (5600, 503750), (5642, 500000), (5824, 484375), (6200, 455000), (6250, 451360), (6448, 437500), (6500, 434000), (6944, 406250), (7000, 403000), (7280, 387500), (7750, 364000), (8000, 352625), (8060, 350000), (8125, 347200), (8680, 325000), (8750, 322400), (9100, 310000), (9920, 284375), (10000, 282100), (10075, 280000), (10400, 271250), (10850, 260000), (11200, 251875), (11284, 250000), (11375, 248000), (12400, 227500), (12500, 225680), (12896, 218750), (13000, 217000), (13888, 203125), (14000, 201500), (14105, 200000), (14560, 193750), (15500, 182000), (15625, 180544), (16120, 175000), (16250, 173600), (17360, 162500), (17500, 161200), (18200, 155000), (19375, 145600), (20000, 141050), (20150, 140000), (20800, 135625), (21700, 130000), (21875, 128960), (22568, 125000), (22750, 124000), (24800, 113750), (25000, 112840), (25792, 109375), (26000, 108500), (27125, 104000), (28000, 100750), (28210, 100000), (29120, 96875), (31000, 91000), (31250, 90272), (32240, 87500), (32500, 86800), (34720, 81250), (35000, 80600), (36400, 77500), (38750, 72800), (40000, 70525), (40300, 70000), (40625, 69440), (43400, 65000), (43750, 64480), (45136, 62500), (45500, 62000), (49600, 56875), (50000, 56420), (50375, 56000), (52000, 54250)]