205597620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 646918272

約数和(自身を除く): 441320652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 101, 129, 172, 180, 202, 215, 258, 263, 303, 387, 404, 430, 505, 516, 526, 606, 645, 774, 789, 860, 909, 1010, 1052, 1212, 1290, 1315, 1515, 1548, 1578, 1818, 1935, 2020, 2367, 2580, 2630, 3030, 3156, 3636, 3870, 3945, 4343, 4545, 4734, 5260, 6060, 7740, 7890, 8686, 9090, 9468, 11309, 11835, 13029, 15780, 17372, 18180, 21715, 22618, 23670, 26058, 26563, 33927, 39087, 43430, 45236, 47340, 52116, 53126, 56545, 65145, 67854, 78174, 79689, 86860, 101781, 106252, 113090, 130290, 132815, 135708, 156348, 159378, 169635, 195435, 203562, 226180, 239067, 260580, 265630, 318756, 339270, 390870, 398445, 407124, 478134, 508905, 531260, 678540, 781740, 796890, 956268, 1017810, 1142209, 1195335, 1593780, 2035620, 2284418, 2390670, 3426627, 4568836, 4781340, 5711045, 6853254, 10279881, 11422090, 13706508, 17133135, 20559762, 22844180, 34266270, 41119524, 51399405, 68532540, 102798810, 205597620]

約数ペア:

[(1, 205597620), (2, 102798810), (3, 68532540), (4, 51399405), (5, 41119524), (6, 34266270), (9, 22844180), (10, 20559762), (12, 17133135), (15, 13706508), (18, 11422090), (20, 10279881), (30, 6853254), (36, 5711045), (43, 4781340), (45, 4568836), (60, 3426627), (86, 2390670), (90, 2284418), (101, 2035620), (129, 1593780), (172, 1195335), (180, 1142209), (202, 1017810), (215, 956268), (258, 796890), (263, 781740), (303, 678540), (387, 531260), (404, 508905), (430, 478134), (505, 407124), (516, 398445), (526, 390870), (606, 339270), (645, 318756), (774, 265630), (789, 260580), (860, 239067), (909, 226180), (1010, 203562), (1052, 195435), (1212, 169635), (1290, 159378), (1315, 156348), (1515, 135708), (1548, 132815), (1578, 130290), (1818, 113090), (1935, 106252), (2020, 101781), (2367, 86860), (2580, 79689), (2630, 78174), (3030, 67854), (3156, 65145), (3636, 56545), (3870, 53126), (3945, 52116), (4343, 47340), (4545, 45236), (4734, 43430), (5260, 39087), (6060, 33927), (7740, 26563), (7890, 26058), (8686, 23670), (9090, 22618), (9468, 21715), (11309, 18180), (11835, 17372), (13029, 15780)]