20763640

素因数分解:

$2^3\times 5^1\times {\mathrm{519091}}^1$

素因数の和:519102

約数の個数: 16

約数和(自身を含む): 46718280

約数和(自身を除く): 25954640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 519091, 1038182, 2076364, 2595455, 4152728, 5190910, 10381820, 20763640]

約数ペア:

[(1, 20763640), (2, 10381820), (4, 5190910), (5, 4152728), (8, 2595455), (10, 2076364), (20, 1038182), (40, 519091)]