31201960

素因数分解:

$2^3\times 5^1\times {\mathrm{780049}}^1$

素因数の和:780060

約数の個数: 16

約数和(自身を含む): 70204500

約数和(自身を除く): 39002540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 780049, 1560098, 3120196, 3900245, 6240392, 7800490, 15600980, 31201960]

約数ペア:

[(1, 31201960), (2, 15600980), (4, 7800490), (5, 6240392), (8, 3900245), (10, 3120196), (20, 1560098), (40, 780049)]