15789709880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{25621}}^1$

素因数の和:25741

約数の個数: 128

約数和(自身を含む): 42503823360

約数和(自身を除く): 26714113480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 71, 124, 140, 142, 155, 217, 248, 280, 284, 310, 355, 434, 497, 568, 620, 710, 868, 994, 1085, 1240, 1420, 1736, 1988, 2170, 2201, 2485, 2840, 3976, 4340, 4402, 4970, 8680, 8804, 9940, 11005, 15407, 17608, 19880, 22010, 25621, 30814, 44020, 51242, 61628, 77035, 88040, 102484, 123256, 128105, 154070, 179347, 204968, 256210, 308140, 358694, 512420, 616280, 717388, 794251, 896735, 1024840, 1434776, 1588502, 1793470, 1819091, 3177004, 3586940, 3638182, 3971255, 5559757, 6354008, 7173880, 7276364, 7942510, 9095455, 11119514, 12733637, 14552728, 15885020, 18190910, 22239028, 25467274, 27798785, 31770040, 36381820, 44478056, 50934548, 55597570, 56391821, 63668185, 72763640, 101869096, 111195140, 112783642, 127336370, 222390280, 225567284, 254672740, 281959105, 394742747, 451134568, 509345480, 563918210, 789485494, 1127836420, 1578970988, 1973713735, 2255672840, 3157941976, 3947427470, 7894854940, 15789709880]

約数ペア:

[(1, 15789709880), (2, 7894854940), (4, 3947427470), (5, 3157941976), (7, 2255672840), (8, 1973713735), (10, 1578970988), (14, 1127836420), (20, 789485494), (28, 563918210), (31, 509345480), (35, 451134568), (40, 394742747), (56, 281959105), (62, 254672740), (70, 225567284), (71, 222390280), (124, 127336370), (140, 112783642), (142, 111195140), (155, 101869096), (217, 72763640), (248, 63668185), (280, 56391821), (284, 55597570), (310, 50934548), (355, 44478056), (434, 36381820), (497, 31770040), (568, 27798785), (620, 25467274), (710, 22239028), (868, 18190910), (994, 15885020), (1085, 14552728), (1240, 12733637), (1420, 11119514), (1736, 9095455), (1988, 7942510), (2170, 7276364), (2201, 7173880), (2485, 6354008), (2840, 5559757), (3976, 3971255), (4340, 3638182), (4402, 3586940), (4970, 3177004), (8680, 1819091), (8804, 1793470), (9940, 1588502), (11005, 1434776), (15407, 1024840), (17608, 896735), (19880, 794251), (22010, 717388), (25621, 616280), (30814, 512420), (44020, 358694), (51242, 308140), (61628, 256210), (77035, 204968), (88040, 179347), (102484, 154070), (123256, 128105)]