1291550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2012

約数の個数: 24

約数和(自身を含む): 2588376

約数和(自身を除く): 1296826

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 1987, 3974, 9935, 19870, 25831, 49675, 51662, 99350, 129155, 258310, 645775, 1291550]

約数ペア:

[(1, 1291550), (2, 645775), (5, 258310), (10, 129155), (13, 99350), (25, 51662), (26, 49675), (50, 25831), (65, 19870), (130, 9935), (325, 3974), (650, 1987)]