81872944

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{31393}}^1$

素因数の和:31564

約数の個数: 20

約数和(自身を含む): 159607096

約数和(自身を除く): 77734152

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 31393, 62786, 125572, 251144, 502288, 5117059, 10234118, 20468236, 40936472, 81872944]

約数ペア:

[(1, 81872944), (2, 40936472), (4, 20468236), (8, 10234118), (16, 5117059), (163, 502288), (326, 251144), (652, 125572), (1304, 62786), (2608, 31393)]