258440000

素因数分解:

$2^6\times 5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 280

約数和(自身を含む): 799843968

約数和(自身を除く): 541403968

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 64, 65, 70, 71, 80, 91, 100, 104, 112, 125, 130, 140, 142, 160, 175, 182, 200, 208, 224, 250, 260, 280, 284, 320, 325, 350, 355, 364, 400, 416, 448, 455, 497, 500, 520, 560, 568, 625, 650, 700, 710, 728, 800, 832, 875, 910, 923, 994, 1000, 1040, 1120, 1136, 1250, 1300, 1400, 1420, 1456, 1600, 1625, 1750, 1775, 1820, 1846, 1988, 2000, 2080, 2240, 2272, 2275, 2485, 2500, 2600, 2800, 2840, 2912, 3250, 3500, 3550, 3640, 3692, 3976, 4000, 4160, 4375, 4544, 4550, 4615, 4970, 5000, 5200, 5600, 5680, 5824, 6461, 6500, 7000, 7100, 7280, 7384, 7952, 8000, 8125, 8750, 8875, 9100, 9230, 9940, 10000, 10400, 11200, 11360, 11375, 12425, 12922, 13000, 14000, 14200, 14560, 14768, 15904, 16250, 17500, 17750, 18200, 18460, 19880, 20000, 20800, 22720, 22750, 23075, 24850, 25844, 26000, 28000, 28400, 29120, 29536, 31808, 32305, 32500, 35000, 35500, 36400, 36920, 39760, 40000, 44375, 45500, 46150, 49700, 51688, 52000, 56000, 56800, 56875, 59072, 62125, 64610, 65000, 70000, 71000, 72800, 73840, 79520, 88750, 91000, 92300, 99400, 103376, 104000, 113600, 113750, 115375, 124250, 129220, 130000, 140000, 142000, 145600, 147680, 159040, 161525, 177500, 182000, 184600, 198800, 206752, 227500, 230750, 248500, 258440, 260000, 280000, 284000, 295360, 310625, 323050, 355000, 364000, 369200, 397600, 413504, 455000, 461500, 497000, 516880, 520000, 568000, 576875, 621250, 646100, 710000, 728000, 738400, 795200, 807625, 910000, 923000, 994000, 1033760, 1153750, 1242500, 1292200, 1420000, 1476800, 1615250, 1820000, 1846000, 1988000, 2067520, 2307500, 2485000, 2584400, 2840000, 3230500, 3640000, 3692000, 3976000, 4038125, 4615000, 4970000, 5168800, 6461000, 7384000, 8076250, 9230000, 9940000, 10337600, 12922000, 16152500, 18460000, 19880000, 25844000, 32305000, 36920000, 51688000, 64610000, 129220000, 258440000]

約数ペア:

[(1, 258440000), (2, 129220000), (4, 64610000), (5, 51688000), (7, 36920000), (8, 32305000), (10, 25844000), (13, 19880000), (14, 18460000), (16, 16152500), (20, 12922000), (25, 10337600), (26, 9940000), (28, 9230000), (32, 8076250), (35, 7384000), (40, 6461000), (50, 5168800), (52, 4970000), (56, 4615000), (64, 4038125), (65, 3976000), (70, 3692000), (71, 3640000), (80, 3230500), (91, 2840000), (100, 2584400), (104, 2485000), (112, 2307500), (125, 2067520), (130, 1988000), (140, 1846000), (142, 1820000), (160, 1615250), (175, 1476800), (182, 1420000), (200, 1292200), (208, 1242500), (224, 1153750), (250, 1033760), (260, 994000), (280, 923000), (284, 910000), (320, 807625), (325, 795200), (350, 738400), (355, 728000), (364, 710000), (400, 646100), (416, 621250), (448, 576875), (455, 568000), (497, 520000), (500, 516880), (520, 497000), (560, 461500), (568, 455000), (625, 413504), (650, 397600), (700, 369200), (710, 364000), (728, 355000), (800, 323050), (832, 310625), (875, 295360), (910, 284000), (923, 280000), (994, 260000), (1000, 258440), (1040, 248500), (1120, 230750), (1136, 227500), (1250, 206752), (1300, 198800), (1400, 184600), (1420, 182000), (1456, 177500), (1600, 161525), (1625, 159040), (1750, 147680), (1775, 145600), (1820, 142000), (1846, 140000), (1988, 130000), (2000, 129220), (2080, 124250), (2240, 115375), (2272, 113750), (2275, 113600), (2485, 104000), (2500, 103376), (2600, 99400), (2800, 92300), (2840, 91000), (2912, 88750), (3250, 79520), (3500, 73840), (3550, 72800), (3640, 71000), (3692, 70000), (3976, 65000), (4000, 64610), (4160, 62125), (4375, 59072), (4544, 56875), (4550, 56800), (4615, 56000), (4970, 52000), (5000, 51688), (5200, 49700), (5600, 46150), (5680, 45500), (5824, 44375), (6461, 40000), (6500, 39760), (7000, 36920), (7100, 36400), (7280, 35500), (7384, 35000), (7952, 32500), (8000, 32305), (8125, 31808), (8750, 29536), (8875, 29120), (9100, 28400), (9230, 28000), (9940, 26000), (10000, 25844), (10400, 24850), (11200, 23075), (11360, 22750), (11375, 22720), (12425, 20800), (12922, 20000), (13000, 19880), (14000, 18460), (14200, 18200), (14560, 17750), (14768, 17500), (15904, 16250)]