13155920

素因数分解:

$2^4\times 5^1\times {\mathrm{164449}}^1$

素因数の和:164462

約数の個数: 20

約数和(自身を含む): 30587700

約数和(自身を除く): 17431780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 164449, 328898, 657796, 822245, 1315592, 1644490, 2631184, 3288980, 6577960, 13155920]

約数ペア:

[(1, 13155920), (2, 6577960), (4, 3288980), (5, 2631184), (8, 1644490), (10, 1315592), (16, 822245), (20, 657796), (40, 328898), (80, 164449)]