13112720

素因数分解:

$2^4\times 5^1\times {\mathrm{163909}}^1$

素因数の和:163922

約数の個数: 20

約数和(自身を含む): 30487260

約数和(自身を除く): 17374540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163909, 327818, 655636, 819545, 1311272, 1639090, 2622544, 3278180, 6556360, 13112720]

約数ペア:

[(1, 13112720), (2, 6556360), (4, 3278180), (5, 2622544), (8, 1639090), (10, 1311272), (16, 819545), (20, 655636), (40, 327818), (80, 163909)]