25405060

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{18959}}^1$

素因数の和:19035

約数の個数: 24

約数和(自身を含む): 54149760

約数和(自身を除く): 28744700

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 18959, 37918, 75836, 94795, 189590, 379180, 1270253, 2540506, 5081012, 6351265, 12702530, 25405060]

約数ペア:

[(1, 25405060), (2, 12702530), (4, 6351265), (5, 5081012), (10, 2540506), (20, 1270253), (67, 379180), (134, 189590), (268, 94795), (335, 75836), (670, 37918), (1340, 18959)]