81961736

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{80671}}^1$

素因数の和:80804

約数の個数: 16

約数和(自身を含む): 154890240

約数和(自身を除く): 72928504

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 80671, 161342, 322684, 645368, 10245217, 20490434, 40980868, 81961736]

約数ペア:

[(1, 81961736), (2, 40980868), (4, 20490434), (8, 10245217), (127, 645368), (254, 322684), (508, 161342), (1016, 80671)]