18990625

素因数分解:

$5^5\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 24373440

約数和(自身を除く): 5382815

約数列:

[1, 5, 25, 59, 103, 125, 295, 515, 625, 1475, 2575, 3125, 6077, 7375, 12875, 30385, 36875, 64375, 151925, 184375, 321875, 759625, 3798125, 18990625]

約数ペア:

[(1, 18990625), (5, 3798125), (25, 759625), (59, 321875), (103, 184375), (125, 151925), (295, 64375), (515, 36875), (625, 30385), (1475, 12875), (2575, 7375), (3125, 6077)]