1561625

素因数分解:

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

素因数の和:90

約数の個数: 24

約数和(自身を含む): 2168712

約数和(自身を除く): 607087

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 325, 403, 775, 961, 1625, 2015, 3875, 4805, 10075, 12493, 24025, 50375, 62465, 120125, 312325, 1561625]

約数ペア:

[(1, 1561625), (5, 312325), (13, 120125), (25, 62465), (31, 50375), (65, 24025), (125, 12493), (155, 10075), (325, 4805), (403, 3875), (775, 2015), (961, 1625)]