61107580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{28031}}^1$

素因数の和:28149

約数の個数: 24

約数和(自身を含む): 129507840

約数和(自身を除く): 68400260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 28031, 56062, 112124, 140155, 280310, 560620, 3055379, 6110758, 12221516, 15276895, 30553790, 61107580]

約数ペア:

[(1, 61107580), (2, 30553790), (4, 15276895), (5, 12221516), (10, 6110758), (20, 3055379), (109, 560620), (218, 280310), (436, 140155), (545, 112124), (1090, 56062), (2180, 28031)]