28072220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127601}}^1$

素因数の和:127621

約数の個数: 24

約数和(自身を含む): 64311408

約数和(自身を除く): 36239188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127601, 255202, 510404, 638005, 1276010, 1403611, 2552020, 2807222, 5614444, 7018055, 14036110, 28072220]

約数ペア:

[(1, 28072220), (2, 14036110), (4, 7018055), (5, 5614444), (10, 2807222), (11, 2552020), (20, 1403611), (22, 1276010), (44, 638005), (55, 510404), (110, 255202), (220, 127601)]