208023140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{800089}}^1$

素因数の和:800111

約数の個数: 24

約数和(自身を含む): 470452920

約数和(自身を除く): 262429780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 800089, 1600178, 3200356, 4000445, 8000890, 10401157, 16001780, 20802314, 41604628, 52005785, 104011570, 208023140]

約数ペア:

[(1, 208023140), (2, 104011570), (4, 52005785), (5, 41604628), (10, 20802314), (13, 16001780), (20, 10401157), (26, 8000890), (52, 4000445), (65, 3200356), (130, 1600178), (260, 800089)]