81384550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{125207}}^1$

素因数の和:125232

約数の個数: 24

約数和(自身を含む): 163020816

約数和(自身を除く): 81636266

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 125207, 250414, 626035, 1252070, 1627691, 3130175, 3255382, 6260350, 8138455, 16276910, 40692275, 81384550]

約数ペア:

[(1, 81384550), (2, 40692275), (5, 16276910), (10, 8138455), (13, 6260350), (25, 3255382), (26, 3130175), (50, 1627691), (65, 1252070), (130, 626035), (325, 250414), (650, 125207)]