80217020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{308527}}^1$

素因数の和:308549

約数の個数: 24

約数和(自身を含む): 181414464

約数和(自身を除く): 101197444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 308527, 617054, 1234108, 1542635, 3085270, 4010851, 6170540, 8021702, 16043404, 20054255, 40108510, 80217020]

約数ペア:

[(1, 80217020), (2, 40108510), (4, 20054255), (5, 16043404), (10, 8021702), (13, 6170540), (20, 4010851), (26, 3085270), (52, 1542635), (65, 1234108), (130, 617054), (260, 308527)]