18180080

素因数分解:

$2^4\times 5^1\times {\mathrm{227251}}^1$

素因数の和:227264

約数の個数: 20

約数和(自身を含む): 42268872

約数和(自身を除く): 24088792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227251, 454502, 909004, 1136255, 1818008, 2272510, 3636016, 4545020, 9090040, 18180080]

約数ペア:

[(1, 18180080), (2, 9090040), (4, 4545020), (5, 3636016), (8, 2272510), (10, 1818008), (16, 1136255), (20, 909004), (40, 454502), (80, 227251)]