1987720000

素因数分解:

$2^6\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:299

約数の個数: 280

約数和(自身を含む): 5840130560

約数和(自身を除く): 3852410560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 64, 70, 80, 100, 112, 124, 125, 140, 155, 160, 175, 200, 217, 224, 229, 248, 250, 280, 310, 320, 350, 400, 434, 448, 458, 496, 500, 560, 620, 625, 700, 775, 800, 868, 875, 916, 992, 1000, 1085, 1120, 1145, 1240, 1250, 1400, 1550, 1600, 1603, 1736, 1750, 1832, 1984, 2000, 2170, 2240, 2290, 2480, 2500, 2800, 3100, 3206, 3472, 3500, 3664, 3875, 4000, 4340, 4375, 4580, 4960, 5000, 5425, 5600, 5725, 6200, 6412, 6944, 7000, 7099, 7328, 7750, 8000, 8015, 8680, 8750, 9160, 9920, 10000, 10850, 11200, 11450, 12400, 12824, 13888, 14000, 14198, 14656, 15500, 16030, 17360, 17500, 18320, 19375, 20000, 21700, 22900, 24800, 25648, 27125, 28000, 28396, 28625, 31000, 32060, 34720, 35000, 35495, 36640, 38750, 40000, 40075, 43400, 45800, 49600, 49693, 51296, 54250, 56000, 56792, 57250, 62000, 64120, 69440, 70000, 70990, 73280, 77500, 80150, 86800, 91600, 99386, 102592, 108500, 113584, 114500, 124000, 128240, 135625, 140000, 141980, 143125, 155000, 160300, 173600, 177475, 183200, 198772, 200375, 217000, 227168, 229000, 248000, 248465, 256480, 271250, 280000, 283960, 286250, 310000, 320600, 347200, 354950, 366400, 397544, 400750, 434000, 454336, 458000, 496930, 512960, 542500, 567920, 572500, 620000, 641200, 709900, 795088, 801500, 868000, 887375, 916000, 993860, 1001875, 1085000, 1135840, 1145000, 1240000, 1242325, 1282400, 1419800, 1590176, 1603000, 1736000, 1774750, 1832000, 1987720, 2003750, 2170000, 2271680, 2290000, 2484650, 2564800, 2839600, 3180352, 3206000, 3549500, 3975440, 4007500, 4340000, 4436875, 4580000, 4969300, 5679200, 6211625, 6412000, 7099000, 7950880, 8015000, 8680000, 8873750, 9160000, 9938600, 11358400, 12423250, 12824000, 14198000, 15901760, 16030000, 17747500, 19877200, 24846500, 28396000, 31058125, 32060000, 35495000, 39754400, 49693000, 56792000, 62116250, 64120000, 70990000, 79508800, 99386000, 124232500, 141980000, 198772000, 248465000, 283960000, 397544000, 496930000, 993860000, 1987720000]

約数ペア:

[(1, 1987720000), (2, 993860000), (4, 496930000), (5, 397544000), (7, 283960000), (8, 248465000), (10, 198772000), (14, 141980000), (16, 124232500), (20, 99386000), (25, 79508800), (28, 70990000), (31, 64120000), (32, 62116250), (35, 56792000), (40, 49693000), (50, 39754400), (56, 35495000), (62, 32060000), (64, 31058125), (70, 28396000), (80, 24846500), (100, 19877200), (112, 17747500), (124, 16030000), (125, 15901760), (140, 14198000), (155, 12824000), (160, 12423250), (175, 11358400), (200, 9938600), (217, 9160000), (224, 8873750), (229, 8680000), (248, 8015000), (250, 7950880), (280, 7099000), (310, 6412000), (320, 6211625), (350, 5679200), (400, 4969300), (434, 4580000), (448, 4436875), (458, 4340000), (496, 4007500), (500, 3975440), (560, 3549500), (620, 3206000), (625, 3180352), (700, 2839600), (775, 2564800), (800, 2484650), (868, 2290000), (875, 2271680), (916, 2170000), (992, 2003750), (1000, 1987720), (1085, 1832000), (1120, 1774750), (1145, 1736000), (1240, 1603000), (1250, 1590176), (1400, 1419800), (1550, 1282400), (1600, 1242325), (1603, 1240000), (1736, 1145000), (1750, 1135840), (1832, 1085000), (1984, 1001875), (2000, 993860), (2170, 916000), (2240, 887375), (2290, 868000), (2480, 801500), (2500, 795088), (2800, 709900), (3100, 641200), (3206, 620000), (3472, 572500), (3500, 567920), (3664, 542500), (3875, 512960), (4000, 496930), (4340, 458000), (4375, 454336), (4580, 434000), (4960, 400750), (5000, 397544), (5425, 366400), (5600, 354950), (5725, 347200), (6200, 320600), (6412, 310000), (6944, 286250), (7000, 283960), (7099, 280000), (7328, 271250), (7750, 256480), (8000, 248465), (8015, 248000), (8680, 229000), (8750, 227168), (9160, 217000), (9920, 200375), (10000, 198772), (10850, 183200), (11200, 177475), (11450, 173600), (12400, 160300), (12824, 155000), (13888, 143125), (14000, 141980), (14198, 140000), (14656, 135625), (15500, 128240), (16030, 124000), (17360, 114500), (17500, 113584), (18320, 108500), (19375, 102592), (20000, 99386), (21700, 91600), (22900, 86800), (24800, 80150), (25648, 77500), (27125, 73280), (28000, 70990), (28396, 70000), (28625, 69440), (31000, 64120), (32060, 62000), (34720, 57250), (35000, 56792), (35495, 56000), (36640, 54250), (38750, 51296), (40000, 49693), (40075, 49600), (43400, 45800)]