20937020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80527}}^1$

素因数の和:80549

約数の個数: 24

約数和(自身を含む): 47350464

約数和(自身を除く): 26413444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 80527, 161054, 322108, 402635, 805270, 1046851, 1610540, 2093702, 4187404, 5234255, 10468510, 20937020]

約数ペア:

[(1, 20937020), (2, 10468510), (4, 5234255), (5, 4187404), (10, 2093702), (13, 1610540), (20, 1046851), (26, 805270), (52, 402635), (65, 322108), (130, 161054), (260, 80527)]