406372220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{228299}}^1$

素因数の和:228397

約数の個数: 24

約数和(自身を含む): 862974000

約数和(自身を除く): 456601780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 228299, 456598, 913196, 1141495, 2282990, 4565980, 20318611, 40637222, 81274444, 101593055, 203186110, 406372220]

約数ペア:

[(1, 406372220), (2, 203186110), (4, 101593055), (5, 81274444), (10, 40637222), (20, 20318611), (89, 4565980), (178, 2282990), (356, 1141495), (445, 913196), (890, 456598), (1780, 228299)]