128325625

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 40

約数和(自身を含む): 170945280

約数和(自身を除く): 42619655

約数列:

[1, 5, 23, 25, 79, 113, 115, 125, 395, 565, 575, 625, 1817, 1975, 2599, 2825, 2875, 8927, 9085, 9875, 12995, 14125, 14375, 44635, 45425, 49375, 64975, 70625, 205321, 223175, 227125, 324875, 1026605, 1115875, 1135625, 1624375, 5133025, 5579375, 25665125, 128325625]

約数ペア:

[(1, 128325625), (5, 25665125), (23, 5579375), (25, 5133025), (79, 1624375), (113, 1135625), (115, 1115875), (125, 1026605), (395, 324875), (565, 227125), (575, 223175), (625, 205321), (1817, 70625), (1975, 64975), (2599, 49375), (2825, 45425), (2875, 44635), (8927, 14375), (9085, 14125), (9875, 12995)]