2540915

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 3443328

約数和(自身を除く): 902413

約数列:

[1, 5, 13, 31, 65, 97, 155, 169, 403, 485, 845, 1261, 2015, 3007, 5239, 6305, 15035, 16393, 26195, 39091, 81965, 195455, 508183, 2540915]

約数ペア:

[(1, 2540915), (5, 508183), (13, 195455), (31, 81965), (65, 39091), (97, 26195), (155, 16393), (169, 15035), (403, 6305), (485, 5239), (845, 3007), (1261, 2015)]