1964625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:75

約数の個数: 48

約数和(自身を含む): 3654144

約数和(自身を除く): 1689519

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 125, 155, 169, 195, 325, 375, 403, 465, 507, 775, 845, 975, 1209, 1625, 2015, 2325, 2535, 3875, 4225, 4875, 5239, 6045, 10075, 11625, 12675, 15717, 21125, 26195, 30225, 50375, 63375, 78585, 130975, 151125, 392925, 654875, 1964625]

約数ペア:

[(1, 1964625), (3, 654875), (5, 392925), (13, 151125), (15, 130975), (25, 78585), (31, 63375), (39, 50375), (65, 30225), (75, 26195), (93, 21125), (125, 15717), (155, 12675), (169, 11625), (195, 10075), (325, 6045), (375, 5239), (403, 4875), (465, 4225), (507, 3875), (775, 2535), (845, 2325), (975, 2015), (1209, 1625)]