71365264

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{21139}}^1$

素因数の和:21358

約数の個数: 20

約数和(自身を含む): 138932080

約数和(自身を除く): 67566816

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 21139, 42278, 84556, 169112, 338224, 4460329, 8920658, 17841316, 35682632, 71365264]

約数ペア:

[(1, 71365264), (2, 35682632), (4, 17841316), (8, 8920658), (16, 4460329), (211, 338224), (422, 169112), (844, 84556), (1688, 42278), (3376, 21139)]