81383125

素因数分解:

$5^4\times {\mathrm{59}}^1\times {\mathrm{2207}}^1$

素因数の和:2286

約数の個数: 20

約数和(自身を含む): 103466880

約数和(自身を除く): 22083755

約数列:

[1, 5, 25, 59, 125, 295, 625, 1475, 2207, 7375, 11035, 36875, 55175, 130213, 275875, 651065, 1379375, 3255325, 16276625, 81383125]

約数ペア:

[(1, 81383125), (5, 16276625), (25, 3255325), (59, 1379375), (125, 651065), (295, 275875), (625, 130213), (1475, 55175), (2207, 36875), (7375, 11035)]