81988226

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{7057}}^1$

素因数の和:7253

約数の個数: 16

約数和(自身を含む): 127128696

約数和(自身を除く): 45140470

約数列:

[1, 2, 37, 74, 157, 314, 5809, 7057, 11618, 14114, 261109, 522218, 1107949, 2215898, 40994113, 81988226]

約数ペア:

[(1, 81988226), (2, 40994113), (37, 2215898), (74, 1107949), (157, 522218), (314, 261109), (5809, 14114), (7057, 11618)]