12953680

素因数分解:

$2^4\times 5^1\times {\mathrm{161921}}^1$

素因数の和:161934

約数の個数: 20

約数和(自身を含む): 30117492

約数和(自身を除く): 17163812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161921, 323842, 647684, 809605, 1295368, 1619210, 2590736, 3238420, 6476840, 12953680]

約数ペア:

[(1, 12953680), (2, 6476840), (4, 3238420), (5, 2590736), (8, 1619210), (10, 1295368), (16, 809605), (20, 647684), (40, 323842), (80, 161921)]