80770540

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{39209}}^1$

素因数の和:39321

約数の個数: 24

約数和(自身を含む): 171269280

約数和(自身を除く): 90498740

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 39209, 78418, 156836, 196045, 392090, 784180, 4038527, 8077054, 16154108, 20192635, 40385270, 80770540]

約数ペア:

[(1, 80770540), (2, 40385270), (4, 20192635), (5, 16154108), (10, 8077054), (20, 4038527), (103, 784180), (206, 392090), (412, 196045), (515, 156836), (1030, 78418), (2060, 39209)]