251865795

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{701}}^1\times {\mathrm{1409}}^1$

素因数の和:2135

約数の個数: 32

約数和(自身を含む): 427602240

約数和(自身を除く): 175736445

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 701, 1409, 2103, 3505, 4227, 7045, 10515, 11917, 21135, 23953, 35751, 59585, 71859, 119765, 178755, 359295, 987709, 2963127, 4938545, 14815635, 16791053, 50373159, 83955265, 251865795]

約数ペア:

[(1, 251865795), (3, 83955265), (5, 50373159), (15, 16791053), (17, 14815635), (51, 4938545), (85, 2963127), (255, 987709), (701, 359295), (1409, 178755), (2103, 119765), (3505, 71859), (4227, 59585), (7045, 35751), (10515, 23953), (11917, 21135)]