257112985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{11743}}^1$

素因数の和:11928

約数の個数: 16

約数和(自身を含む): 321315840

約数和(自身を除く): 64202855

約数列:

[1, 5, 29, 145, 151, 755, 4379, 11743, 21895, 58715, 340547, 1702735, 1773193, 8865965, 51422597, 257112985]

約数ペア:

[(1, 257112985), (5, 51422597), (29, 8865965), (145, 1773193), (151, 1702735), (755, 340547), (4379, 58715), (11743, 21895)]