18701875

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{1301}}^1$

素因数の和:1344

約数の個数: 20

約数和(自身を含む): 24404688

約数和(自身を除く): 5702813

約数列:

[1, 5, 23, 25, 115, 125, 575, 625, 1301, 2875, 6505, 14375, 29923, 32525, 149615, 162625, 748075, 813125, 3740375, 18701875]

約数ペア:

[(1, 18701875), (5, 3740375), (23, 813125), (25, 748075), (115, 162625), (125, 149615), (575, 32525), (625, 29923), (1301, 14375), (2875, 6505)]