3979625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 32

約数和(自身を含む): 5591040

約数和(自身を除く): 1611415

約数列:

[1, 5, 13, 25, 31, 65, 79, 125, 155, 325, 395, 403, 775, 1027, 1625, 1975, 2015, 2449, 3875, 5135, 9875, 10075, 12245, 25675, 31837, 50375, 61225, 128375, 159185, 306125, 795925, 3979625]

約数ペア:

[(1, 3979625), (5, 795925), (13, 306125), (25, 159185), (31, 128375), (65, 61225), (79, 50375), (125, 31837), (155, 25675), (325, 12245), (395, 10075), (403, 9875), (775, 5135), (1027, 3875), (1625, 2449), (1975, 2015)]