31484375

素因数分解:

$5^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 32

約数和(自身を含む): 43749888

約数和(自身を除く): 12265513

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 625, 775, 1625, 2015, 3125, 3875, 8125, 10075, 15625, 19375, 40625, 50375, 78125, 96875, 203125, 251875, 484375, 1015625, 1259375, 2421875, 6296875, 31484375]

約数ペア:

[(1, 31484375), (5, 6296875), (13, 2421875), (25, 1259375), (31, 1015625), (65, 484375), (125, 251875), (155, 203125), (325, 96875), (403, 78125), (625, 50375), (775, 40625), (1625, 19375), (2015, 15625), (3125, 10075), (3875, 8125)]