202143125

素因数分解:

$5^4\times {\mathrm{503}}^1\times {\mathrm{643}}^1$

素因数の和:1166

約数の個数: 20

約数和(自身を含む): 253493856

約数和(自身を除く): 51350731

約数列:

[1, 5, 25, 125, 503, 625, 643, 2515, 3215, 12575, 16075, 62875, 80375, 314375, 323429, 401875, 1617145, 8085725, 40428625, 202143125]

約数ペア:

[(1, 202143125), (5, 40428625), (25, 8085725), (125, 1617145), (503, 401875), (625, 323429), (643, 314375), (2515, 80375), (3215, 62875), (12575, 16075)]