28857160

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42437}}^1$

素因数の和:42465

約数の個数: 32

約数和(自身を含む): 68749560

約数和(自身を除く): 39892400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 42437, 84874, 169748, 212185, 339496, 424370, 721429, 848740, 1442858, 1697480, 2885716, 3607145, 5771432, 7214290, 14428580, 28857160]

約数ペア:

[(1, 28857160), (2, 14428580), (4, 7214290), (5, 5771432), (8, 3607145), (10, 2885716), (17, 1697480), (20, 1442858), (34, 848740), (40, 721429), (68, 424370), (85, 339496), (136, 212185), (170, 169748), (340, 84874), (680, 42437)]