2189375

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:164

約数の個数: 20

約数和(自身を含む): 2849088

約数和(自身を除く): 659713

約数列:

[1, 5, 25, 31, 113, 125, 155, 565, 625, 775, 2825, 3503, 3875, 14125, 17515, 19375, 70625, 87575, 437875, 2189375]

約数ペア:

[(1, 2189375), (5, 437875), (25, 87575), (31, 70625), (113, 19375), (125, 17515), (155, 14125), (565, 3875), (625, 3503), (775, 2825)]