2458180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1381}}^1$

素因数の和:1479

約数の個数: 24

約数和(自身を含む): 5223960

約数和(自身を除く): 2765780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1381, 1780, 2762, 5524, 6905, 13810, 27620, 122909, 245818, 491636, 614545, 1229090, 2458180]

約数ペア:

[(1, 2458180), (2, 1229090), (4, 614545), (5, 491636), (10, 245818), (20, 122909), (89, 27620), (178, 13810), (356, 6905), (445, 5524), (890, 2762), (1381, 1780)]