20157020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77527}}^1$

素因数の和:77549

約数の個数: 24

約数和(自身を含む): 45586464

約数和(自身を除く): 25429444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77527, 155054, 310108, 387635, 775270, 1007851, 1550540, 2015702, 4031404, 5039255, 10078510, 20157020]

約数ペア:

[(1, 20157020), (2, 10078510), (4, 5039255), (5, 4031404), (10, 2015702), (13, 1550540), (20, 1007851), (26, 775270), (52, 387635), (65, 310108), (130, 155054), (260, 77527)]