1995625

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:154

約数の個数: 20

約数和(自身を含む): 2599168

約数和(自身を除く): 603543

約数列:

[1, 5, 25, 31, 103, 125, 155, 515, 625, 775, 2575, 3193, 3875, 12875, 15965, 19375, 64375, 79825, 399125, 1995625]

約数ペア:

[(1, 1995625), (5, 399125), (25, 79825), (31, 64375), (103, 19375), (125, 15965), (155, 12875), (515, 3875), (625, 3193), (775, 2575)]