66409160

素因数分解:

$2^3\times 5^1\times {\mathrm{1660229}}^1$

素因数の和:1660240

約数の個数: 16

約数和(自身を含む): 149420700

約数和(自身を除く): 83011540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1660229, 3320458, 6640916, 8301145, 13281832, 16602290, 33204580, 66409160]

約数ペア:

[(1, 66409160), (2, 33204580), (4, 16602290), (5, 13281832), (8, 8301145), (10, 6640916), (20, 3320458), (40, 1660229)]