89171740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8971}}^1$

素因数の和:9058

約数の個数: 48

約数和(自身を含む): 217050624

約数和(自身を除く): 127878884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 8971, 9940, 17942, 35884, 44855, 62797, 89710, 125594, 179420, 251188, 313985, 627970, 636941, 1255940, 1273882, 2547764, 3184705, 4458587, 6369410, 8917174, 12738820, 17834348, 22292935, 44585870, 89171740]

約数ペア:

[(1, 89171740), (2, 44585870), (4, 22292935), (5, 17834348), (7, 12738820), (10, 8917174), (14, 6369410), (20, 4458587), (28, 3184705), (35, 2547764), (70, 1273882), (71, 1255940), (140, 636941), (142, 627970), (284, 313985), (355, 251188), (497, 179420), (710, 125594), (994, 89710), (1420, 62797), (1988, 44855), (2485, 35884), (4970, 17942), (8971, 9940)]