644688790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1531}}^1\times {\mathrm{2477}}^1$

素因数の和:4032

約数の個数: 32

約数和(自身を含む): 1229999904

約数和(自身を除く): 585311114

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 1531, 2477, 3062, 4954, 7655, 12385, 15310, 24770, 26027, 42109, 52054, 84218, 130135, 210545, 260270, 421090, 3792287, 7584574, 18961435, 37922870, 64468879, 128937758, 322344395, 644688790]

約数ペア:

[(1, 644688790), (2, 322344395), (5, 128937758), (10, 64468879), (17, 37922870), (34, 18961435), (85, 7584574), (170, 3792287), (1531, 421090), (2477, 260270), (3062, 210545), (4954, 130135), (7655, 84218), (12385, 52054), (15310, 42109), (24770, 26027)]