811893890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1980229}}^1$

素因数の和:1980277

約数の個数: 16

約数和(自身を含む): 1497053880

約数和(自身を除く): 685159990

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 1980229, 3960458, 9901145, 19802290, 81189389, 162378778, 405946945, 811893890]

約数ペア:

[(1, 811893890), (2, 405946945), (5, 162378778), (10, 81189389), (41, 19802290), (82, 9901145), (205, 3960458), (410, 1980229)]