8171620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 18088560

約数和(自身を除く): 9916940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 193, 290, 292, 365, 386, 580, 730, 772, 965, 1460, 1930, 2117, 3860, 4234, 5597, 8468, 10585, 11194, 14089, 21170, 22388, 27985, 28178, 42340, 55970, 56356, 70445, 111940, 140890, 281780, 408581, 817162, 1634324, 2042905, 4085810, 8171620]

約数ペア:

[(1, 8171620), (2, 4085810), (4, 2042905), (5, 1634324), (10, 817162), (20, 408581), (29, 281780), (58, 140890), (73, 111940), (116, 70445), (145, 56356), (146, 55970), (193, 42340), (290, 28178), (292, 27985), (365, 22388), (386, 21170), (580, 14089), (730, 11194), (772, 10585), (965, 8468), (1460, 5597), (1930, 4234), (2117, 3860)]