220121240

素因数分解:

$2^3\times 5^1\times {\mathrm{5503031}}^1$

素因数の和:5503042

約数の個数: 16

約数和(自身を含む): 495272880

約数和(自身を除く): 275151640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5503031, 11006062, 22012124, 27515155, 44024248, 55030310, 110060620, 220121240]

約数ペア:

[(1, 220121240), (2, 110060620), (4, 55030310), (5, 44024248), (8, 27515155), (10, 22012124), (20, 11006062), (40, 5503031)]