20347510

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4721}}^1$

素因数の和:5159

約数の個数: 16

約数和(自身を含む): 36718272

約数和(自身を除く): 16370762

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4310, 4721, 9442, 23605, 47210, 2034751, 4069502, 10173755, 20347510]

約数ペア:

[(1, 20347510), (2, 10173755), (5, 4069502), (10, 2034751), (431, 47210), (862, 23605), (2155, 9442), (4310, 4721)]