1657240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3187}}^1$

素因数の和:3211

約数の個数: 32

約数和(自身を含む): 4016880

約数和(自身を除く): 2359640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3187, 6374, 12748, 15935, 25496, 31870, 41431, 63740, 82862, 127480, 165724, 207155, 331448, 414310, 828620, 1657240]

約数ペア:

[(1, 1657240), (2, 828620), (4, 414310), (5, 331448), (8, 207155), (10, 165724), (13, 127480), (20, 82862), (26, 63740), (40, 41431), (52, 31870), (65, 25496), (104, 15935), (130, 12748), (260, 6374), (520, 3187)]