30909820

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3671}}^1$

素因数の和:4101

約数の個数: 24

約数和(自身を含む): 65082528

約数和(自身を除く): 34172708

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 3671, 4210, 7342, 8420, 14684, 18355, 36710, 73420, 1545491, 3090982, 6181964, 7727455, 15454910, 30909820]

約数ペア:

[(1, 30909820), (2, 15454910), (4, 7727455), (5, 6181964), (10, 3090982), (20, 1545491), (421, 73420), (842, 36710), (1684, 18355), (2105, 14684), (3671, 8420), (4210, 7342)]