81396808

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{248161}}^1$

素因数の和:248208

約数の個数: 16

約数和(自身を含む): 156342060

約数和(自身を除く): 74945252

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 248161, 496322, 992644, 1985288, 10174601, 20349202, 40698404, 81396808]

約数ペア:

[(1, 81396808), (2, 40698404), (4, 20349202), (8, 10174601), (41, 1985288), (82, 992644), (164, 496322), (328, 248161)]