68517740

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{3457}}^1$

素因数の和:4457

約数の個数: 24

約数和(自身を含む): 144074112

約数和(自身を除く): 75556372

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3457, 3964, 4955, 6914, 9910, 13828, 17285, 19820, 34570, 69140, 3425887, 6851774, 13703548, 17129435, 34258870, 68517740]

約数ペア:

[(1, 68517740), (2, 34258870), (4, 17129435), (5, 13703548), (10, 6851774), (20, 3425887), (991, 69140), (1982, 34570), (3457, 19820), (3964, 17285), (4955, 13828), (6914, 9910)]