13407640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4721}}^1$

素因数の和:4803

約数の個数: 32

約数和(自身を含む): 30598560

約数和(自身を除く): 17190920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4721, 9442, 18884, 23605, 37768, 47210, 94420, 188840, 335191, 670382, 1340764, 1675955, 2681528, 3351910, 6703820, 13407640]

約数ペア:

[(1, 13407640), (2, 6703820), (4, 3351910), (5, 2681528), (8, 1675955), (10, 1340764), (20, 670382), (40, 335191), (71, 188840), (142, 94420), (284, 47210), (355, 37768), (568, 23605), (710, 18884), (1420, 9442), (2840, 4721)]