20123275

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{443}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 26426880

約数和(自身を除く): 6303605

約数列:

[1, 5, 23, 25, 79, 115, 395, 443, 575, 1817, 1975, 2215, 9085, 10189, 11075, 34997, 45425, 50945, 174985, 254725, 804931, 874925, 4024655, 20123275]

約数ペア:

[(1, 20123275), (5, 4024655), (23, 874925), (25, 804931), (79, 254725), (115, 174985), (395, 50945), (443, 45425), (575, 34997), (1817, 11075), (1975, 10189), (2215, 9085)]