339971218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:730

約数の個数: 32

約数和(自身を含む): 545688000

約数和(自身を除く): 205716782

約数列:

[1, 2, 19, 38, 109, 211, 218, 389, 422, 778, 2071, 4009, 4142, 7391, 8018, 14782, 22999, 42401, 45998, 82079, 84802, 164158, 436981, 805619, 873962, 1559501, 1611238, 3119002, 8946611, 17893222, 169985609, 339971218]

約数ペア:

[(1, 339971218), (2, 169985609), (19, 17893222), (38, 8946611), (109, 3119002), (211, 1611238), (218, 1559501), (389, 873962), (422, 805619), (778, 436981), (2071, 164158), (4009, 84802), (4142, 82079), (7391, 45998), (8018, 42401), (14782, 22999)]