2021799205

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 2652480000

約数和(自身を除く): 630680795

約数列:

[1, 5, 17, 79, 85, 89, 199, 289, 395, 445, 995, 1343, 1445, 1513, 3383, 6715, 7031, 7565, 15721, 16915, 17711, 22831, 25721, 35155, 57511, 78605, 88555, 114155, 119527, 128605, 267257, 287555, 301087, 597635, 1336285, 1399169, 1505435, 2031959, 4543369, 5118479, 6995845, 10159795, 22716845, 23785873, 25592395, 118929365, 404359841, 2021799205]

約数ペア:

[(1, 2021799205), (5, 404359841), (17, 118929365), (79, 25592395), (85, 23785873), (89, 22716845), (199, 10159795), (289, 6995845), (395, 5118479), (445, 4543369), (995, 2031959), (1343, 1505435), (1445, 1399169), (1513, 1336285), (3383, 597635), (6715, 301087), (7031, 287555), (7565, 267257), (15721, 128605), (16915, 119527), (17711, 114155), (22831, 88555), (25721, 78605), (35155, 57511)]