20301125

素因数分解:

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

素因数の和:103

約数の個数: 36

約数和(自身を含む): 28348164

約数和(自身を除く): 8047039

約数列:

[1, 5, 13, 25, 31, 65, 125, 155, 169, 325, 403, 775, 845, 961, 1625, 2015, 3875, 4225, 4805, 5239, 10075, 12493, 21125, 24025, 26195, 50375, 62465, 120125, 130975, 162409, 312325, 654875, 812045, 1561625, 4060225, 20301125]

約数ペア:

[(1, 20301125), (5, 4060225), (13, 1561625), (25, 812045), (31, 654875), (65, 312325), (125, 162409), (155, 130975), (169, 120125), (325, 62465), (403, 50375), (775, 26195), (845, 24025), (961, 21125), (1625, 12493), (2015, 10075), (3875, 5239), (4225, 4805)]