13072915

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 17020080

約数和(自身を除く): 3947165

約数列:

[1, 5, 17, 83, 85, 109, 289, 415, 545, 1411, 1445, 1853, 7055, 9047, 9265, 23987, 31501, 45235, 119935, 153799, 157505, 768995, 2614583, 13072915]

約数ペア:

[(1, 13072915), (5, 2614583), (17, 768995), (83, 157505), (85, 153799), (109, 119935), (289, 45235), (415, 31501), (545, 23987), (1411, 9265), (1445, 9047), (1853, 7055)]