18831640

素因数分解:

$2^3\times 5^1\times {\mathrm{470791}}^1$

素因数の和:470802

約数の個数: 16

約数和(自身を含む): 42371280

約数和(自身を除く): 23539640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 470791, 941582, 1883164, 2353955, 3766328, 4707910, 9415820, 18831640]

約数ペア:

[(1, 18831640), (2, 9415820), (4, 4707910), (5, 3766328), (8, 2353955), (10, 1883164), (20, 941582), (40, 470791)]