639232405

素因数分解:

$5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1\times {\mathrm{547}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 887917824

約数和(自身を除く): 248685419

約数列:

[1, 5, 7, 35, 173, 193, 547, 865, 965, 1211, 1351, 2735, 3829, 6055, 6755, 19145, 33389, 94631, 105571, 166945, 233723, 473155, 527855, 662417, 738997, 1168615, 3312085, 3694985, 18263783, 91318915, 127846481, 639232405]

約数ペア:

[(1, 639232405), (5, 127846481), (7, 91318915), (35, 18263783), (173, 3694985), (193, 3312085), (547, 1168615), (865, 738997), (965, 662417), (1211, 527855), (1351, 473155), (2735, 233723), (3829, 166945), (6055, 105571), (6755, 94631), (19145, 33389)]