72809080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 171694080

約数和(自身を除く): 98885000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 827, 1240, 1420, 1654, 2201, 2840, 3308, 4135, 4402, 6616, 8270, 8804, 11005, 16540, 17608, 22010, 25637, 33080, 44020, 51274, 58717, 88040, 102548, 117434, 128185, 205096, 234868, 256370, 293585, 469736, 512740, 587170, 1025480, 1174340, 1820227, 2348680, 3640454, 7280908, 9101135, 14561816, 18202270, 36404540, 72809080]

約数ペア:

[(1, 72809080), (2, 36404540), (4, 18202270), (5, 14561816), (8, 9101135), (10, 7280908), (20, 3640454), (31, 2348680), (40, 1820227), (62, 1174340), (71, 1025480), (124, 587170), (142, 512740), (155, 469736), (248, 293585), (284, 256370), (310, 234868), (355, 205096), (568, 128185), (620, 117434), (710, 102548), (827, 88040), (1240, 58717), (1420, 51274), (1654, 44020), (2201, 33080), (2840, 25637), (3308, 22010), (4135, 17608), (4402, 16540), (6616, 11005), (8270, 8804)]