20645628

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 55050240

約数和(自身を除く): 34404612

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 31, 38, 46, 57, 62, 69, 76, 92, 93, 114, 124, 127, 138, 186, 228, 254, 276, 372, 381, 437, 508, 589, 713, 762, 874, 1178, 1311, 1426, 1524, 1748, 1767, 2139, 2356, 2413, 2622, 2852, 2921, 3534, 3937, 4278, 4826, 5244, 5842, 7068, 7239, 7874, 8556, 8763, 9652, 11684, 11811, 13547, 14478, 15748, 17526, 23622, 27094, 28956, 35052, 40641, 47244, 54188, 55499, 74803, 81282, 90551, 110998, 149606, 162564, 166497, 181102, 221996, 224409, 271653, 299212, 332994, 362204, 448818, 543306, 665988, 897636, 1086612, 1720469, 3440938, 5161407, 6881876, 10322814, 20645628]

約数ペア:

[(1, 20645628), (2, 10322814), (3, 6881876), (4, 5161407), (6, 3440938), (12, 1720469), (19, 1086612), (23, 897636), (31, 665988), (38, 543306), (46, 448818), (57, 362204), (62, 332994), (69, 299212), (76, 271653), (92, 224409), (93, 221996), (114, 181102), (124, 166497), (127, 162564), (138, 149606), (186, 110998), (228, 90551), (254, 81282), (276, 74803), (372, 55499), (381, 54188), (437, 47244), (508, 40641), (589, 35052), (713, 28956), (762, 27094), (874, 23622), (1178, 17526), (1311, 15748), (1426, 14478), (1524, 13547), (1748, 11811), (1767, 11684), (2139, 9652), (2356, 8763), (2413, 8556), (2622, 7874), (2852, 7239), (2921, 7068), (3534, 5842), (3937, 5244), (4278, 4826)]