287620

素因数分解:

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

素因数の和:279

約数の個数: 24

約数和(自身を含む): 615384

約数和(自身を除く): 327764

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 197, 292, 365, 394, 730, 788, 985, 1460, 1970, 3940, 14381, 28762, 57524, 71905, 143810, 287620]

約数ペア:

[(1, 287620), (2, 143810), (4, 71905), (5, 57524), (10, 28762), (20, 14381), (73, 3940), (146, 1970), (197, 1460), (292, 985), (365, 788), (394, 730)]