20175866420

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4781011}}^1$

素因数の和:4781231

約数の個数: 24

約数和(自身を含む): 42570130848

約数和(自身を除く): 22394264428

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 4781011, 9562022, 19124044, 23905055, 47810110, 95620220, 1008793321, 2017586642, 4035173284, 5043966605, 10087933210, 20175866420]

約数ペア:

[(1, 20175866420), (2, 10087933210), (4, 5043966605), (5, 4035173284), (10, 2017586642), (20, 1008793321), (211, 95620220), (422, 47810110), (844, 23905055), (1055, 19124044), (2110, 9562022), (4220, 4781011)]