90879640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{52837}}^1$

素因数の和:52891

約数の個数: 32

約数和(自身を含む): 209238480

約数和(自身を除く): 118358840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 52837, 105674, 211348, 264185, 422696, 528370, 1056740, 2113480, 2271991, 4543982, 9087964, 11359955, 18175928, 22719910, 45439820, 90879640]

約数ペア:

[(1, 90879640), (2, 45439820), (4, 22719910), (5, 18175928), (8, 11359955), (10, 9087964), (20, 4543982), (40, 2271991), (43, 2113480), (86, 1056740), (172, 528370), (215, 422696), (344, 264185), (430, 211348), (860, 105674), (1720, 52837)]