31350580

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 67692240

約数和(自身を除く): 36341660

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 197, 218, 292, 365, 394, 436, 545, 730, 788, 985, 1090, 1460, 1970, 2180, 3940, 7957, 14381, 15914, 21473, 28762, 31828, 39785, 42946, 57524, 71905, 79570, 85892, 107365, 143810, 159140, 214730, 287620, 429460, 1567529, 3135058, 6270116, 7837645, 15675290, 31350580]

約数ペア:

[(1, 31350580), (2, 15675290), (4, 7837645), (5, 6270116), (10, 3135058), (20, 1567529), (73, 429460), (109, 287620), (146, 214730), (197, 159140), (218, 143810), (292, 107365), (365, 85892), (394, 79570), (436, 71905), (545, 57524), (730, 42946), (788, 39785), (985, 31828), (1090, 28762), (1460, 21473), (1970, 15914), (2180, 14381), (3940, 7957)]