12946375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 18031104

約数和(自身を除く): 5084729

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 257, 325, 403, 775, 1285, 1625, 2015, 3341, 3875, 6425, 7967, 10075, 16705, 32125, 39835, 50375, 83525, 103571, 199175, 417625, 517855, 995875, 2589275, 12946375]

約数ペア:

[(1, 12946375), (5, 2589275), (13, 995875), (25, 517855), (31, 417625), (65, 199175), (125, 103571), (155, 83525), (257, 50375), (325, 39835), (403, 32125), (775, 16705), (1285, 10075), (1625, 7967), (2015, 6425), (3341, 3875)]