20810580880

素因数分解:

$2^4\times 5^1\times {\mathrm{260132261}}^1$

素因数の和:260132274

約数の個数: 20

約数和(自身を含む): 48384600732

約数和(自身を除く): 27574019852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260132261, 520264522, 1040529044, 1300661305, 2081058088, 2601322610, 4162116176, 5202645220, 10405290440, 20810580880]

約数ペア:

[(1, 20810580880), (2, 10405290440), (4, 5202645220), (5, 4162116176), (8, 2601322610), (10, 2081058088), (16, 1300661305), (20, 1040529044), (40, 520264522), (80, 260132261)]