66866840

素因数分解:

$2^3\times 5^1\times {\mathrm{1671671}}^1$

素因数の和:1671682

約数の個数: 16

約数和(自身を含む): 150450480

約数和(自身を除く): 83583640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1671671, 3343342, 6686684, 8358355, 13373368, 16716710, 33433420, 66866840]

約数ペア:

[(1, 66866840), (2, 33433420), (4, 16716710), (5, 13373368), (8, 8358355), (10, 6686684), (20, 3343342), (40, 1671671)]