20490125

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{7127}}^1$

素因数の和:7165

約数の個数: 16

約数和(自身を含む): 26687232

約数和(自身を除く): 6197107

約数列:

[1, 5, 23, 25, 115, 125, 575, 2875, 7127, 35635, 163921, 178175, 819605, 890875, 4098025, 20490125]

約数ペア:

[(1, 20490125), (5, 4098025), (23, 890875), (25, 819605), (115, 178175), (125, 163921), (575, 35635), (2875, 7127)]