18260560

素因数分解:

$2^4\times 5^1\times {\mathrm{228257}}^1$

素因数の和:228270

約数の個数: 20

約数和(自身を含む): 42455988

約数和(自身を除く): 24195428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228257, 456514, 913028, 1141285, 1826056, 2282570, 3652112, 4565140, 9130280, 18260560]

約数ペア:

[(1, 18260560), (2, 9130280), (4, 4565140), (5, 3652112), (8, 2282570), (10, 1826056), (16, 1141285), (20, 913028), (40, 456514), (80, 228257)]