8139820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31307}}^1$

素因数の和:31329

約数の個数: 24

約数和(自身を含む): 18409104

約数和(自身を除く): 10269284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31307, 62614, 125228, 156535, 313070, 406991, 626140, 813982, 1627964, 2034955, 4069910, 8139820]

約数ペア:

[(1, 8139820), (2, 4069910), (4, 2034955), (5, 1627964), (10, 813982), (13, 626140), (20, 406991), (26, 313070), (52, 156535), (65, 125228), (130, 62614), (260, 31307)]