1556960990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{412987}}^1$

素因数の和:413036

約数の個数: 32

約数和(自身を含む): 3122189280

約数和(自身を除く): 1565228290

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 412987, 825974, 2064935, 4129870, 5368831, 10737662, 11976623, 23953246, 26844155, 53688310, 59883115, 119766230, 155696099, 311392198, 778480495, 1556960990]

約数ペア:

[(1, 1556960990), (2, 778480495), (5, 311392198), (10, 155696099), (13, 119766230), (26, 59883115), (29, 53688310), (58, 26844155), (65, 23953246), (130, 11976623), (145, 10737662), (290, 5368831), (377, 4129870), (754, 2064935), (1885, 825974), (3770, 412987)]