81163568

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{31121}}^1$

素因数の和:31292

約数の個数: 20

約数和(自身を含む): 158224248

約数和(自身を除く): 77060680

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 31121, 62242, 124484, 248968, 497936, 5072723, 10145446, 20290892, 40581784, 81163568]

約数ペア:

[(1, 81163568), (2, 40581784), (4, 20290892), (8, 10145446), (16, 5072723), (163, 497936), (326, 248968), (652, 124484), (1304, 62242), (2608, 31121)]