72751640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139907}}^1$

素因数の和:139931

約数の個数: 32

約数和(自身を含む): 176284080

約数和(自身を除く): 103532440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139907, 279814, 559628, 699535, 1119256, 1399070, 1818791, 2798140, 3637582, 5596280, 7275164, 9093955, 14550328, 18187910, 36375820, 72751640]

約数ペア:

[(1, 72751640), (2, 36375820), (4, 18187910), (5, 14550328), (8, 9093955), (10, 7275164), (13, 5596280), (20, 3637582), (26, 2798140), (40, 1818791), (52, 1399070), (65, 1119256), (104, 699535), (130, 559628), (260, 279814), (520, 139907)]