28181244

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 81962496

約数和(自身を除く): 53781252

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 131, 156, 182, 197, 262, 273, 364, 393, 394, 524, 546, 591, 786, 788, 917, 1092, 1182, 1379, 1572, 1703, 1834, 2364, 2561, 2751, 2758, 3406, 3668, 4137, 5109, 5122, 5502, 5516, 6812, 7683, 8274, 10218, 10244, 11004, 11921, 15366, 16548, 17927, 20436, 23842, 25807, 30732, 35763, 35854, 47684, 51614, 53781, 71526, 71708, 77421, 103228, 107562, 143052, 154842, 180649, 215124, 309684, 335491, 361298, 541947, 670982, 722596, 1006473, 1083894, 1341964, 2012946, 2167788, 2348437, 4025892, 4696874, 7045311, 9393748, 14090622, 28181244]

約数ペア:

[(1, 28181244), (2, 14090622), (3, 9393748), (4, 7045311), (6, 4696874), (7, 4025892), (12, 2348437), (13, 2167788), (14, 2012946), (21, 1341964), (26, 1083894), (28, 1006473), (39, 722596), (42, 670982), (52, 541947), (78, 361298), (84, 335491), (91, 309684), (131, 215124), (156, 180649), (182, 154842), (197, 143052), (262, 107562), (273, 103228), (364, 77421), (393, 71708), (394, 71526), (524, 53781), (546, 51614), (591, 47684), (786, 35854), (788, 35763), (917, 30732), (1092, 25807), (1182, 23842), (1379, 20436), (1572, 17927), (1703, 16548), (1834, 15366), (2364, 11921), (2561, 11004), (2751, 10244), (2758, 10218), (3406, 8274), (3668, 7683), (4137, 6812), (5109, 5516), (5122, 5502)]