64997290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20123}}^1$

素因数の和:20166

約数の個数: 32

約数和(自身を含む): 130403520

約数和(自身を除く): 65406230

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 20123, 40246, 100615, 201230, 342091, 382337, 684182, 764674, 1710455, 1911685, 3420910, 3823370, 6499729, 12999458, 32498645, 64997290]

約数ペア:

[(1, 64997290), (2, 32498645), (5, 12999458), (10, 6499729), (17, 3823370), (19, 3420910), (34, 1911685), (38, 1710455), (85, 764674), (95, 684182), (170, 382337), (190, 342091), (323, 201230), (646, 100615), (1615, 40246), (3230, 20123)]