77855440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74861}}^1$

素因数の和:74887

約数の個数: 40

約数和(自身を含む): 194940648

約数和(自身を除く): 117085208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 74861, 149722, 299444, 374305, 598888, 748610, 973193, 1197776, 1497220, 1946386, 2994440, 3892772, 4865965, 5988880, 7785544, 9731930, 15571088, 19463860, 38927720, 77855440]

約数ペア:

[(1, 77855440), (2, 38927720), (4, 19463860), (5, 15571088), (8, 9731930), (10, 7785544), (13, 5988880), (16, 4865965), (20, 3892772), (26, 2994440), (40, 1946386), (52, 1497220), (65, 1197776), (80, 973193), (104, 748610), (130, 598888), (208, 374305), (260, 299444), (520, 149722), (1040, 74861)]