290384680

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{22901}}^1$

素因数の和:23229

約数の個数: 32

約数和(自身を含む): 655455240

約数和(自身を除く): 365070560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12680, 22901, 45802, 91604, 114505, 183208, 229010, 458020, 916040, 7259617, 14519234, 29038468, 36298085, 58076936, 72596170, 145192340, 290384680]

約数ペア:

[(1, 290384680), (2, 145192340), (4, 72596170), (5, 58076936), (8, 36298085), (10, 29038468), (20, 14519234), (40, 7259617), (317, 916040), (634, 458020), (1268, 229010), (1585, 183208), (2536, 114505), (3170, 91604), (6340, 45802), (12680, 22901)]