81938008

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{249811}}^1$

素因数の和:249858

約数の個数: 16

約数和(自身を含む): 157381560

約数和(自身を除く): 75443552

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 249811, 499622, 999244, 1998488, 10242251, 20484502, 40969004, 81938008]

約数ペア:

[(1, 81938008), (2, 40969004), (4, 20484502), (8, 10242251), (41, 1998488), (82, 999244), (164, 499622), (328, 249811)]