20508936

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 43357944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 43, 51, 56, 68, 84, 86, 102, 119, 129, 136, 167, 168, 172, 204, 238, 258, 301, 334, 344, 357, 408, 476, 501, 516, 602, 668, 714, 731, 903, 952, 1002, 1032, 1169, 1204, 1336, 1428, 1462, 1806, 2004, 2193, 2338, 2408, 2839, 2856, 2924, 3507, 3612, 4008, 4386, 4676, 5117, 5678, 5848, 7014, 7181, 7224, 8517, 8772, 9352, 10234, 11356, 14028, 14362, 15351, 17034, 17544, 19873, 20468, 21543, 22712, 28056, 28724, 30702, 34068, 39746, 40936, 43086, 50267, 57448, 59619, 61404, 68136, 79492, 86172, 100534, 119238, 122077, 122808, 150801, 158984, 172344, 201068, 238476, 244154, 301602, 366231, 402136, 476952, 488308, 603204, 732462, 854539, 976616, 1206408, 1464924, 1709078, 2563617, 2929848, 3418156, 5127234, 6836312, 10254468, 20508936]

約数ペア:

[(1, 20508936), (2, 10254468), (3, 6836312), (4, 5127234), (6, 3418156), (7, 2929848), (8, 2563617), (12, 1709078), (14, 1464924), (17, 1206408), (21, 976616), (24, 854539), (28, 732462), (34, 603204), (42, 488308), (43, 476952), (51, 402136), (56, 366231), (68, 301602), (84, 244154), (86, 238476), (102, 201068), (119, 172344), (129, 158984), (136, 150801), (167, 122808), (168, 122077), (172, 119238), (204, 100534), (238, 86172), (258, 79492), (301, 68136), (334, 61404), (344, 59619), (357, 57448), (408, 50267), (476, 43086), (501, 40936), (516, 39746), (602, 34068), (668, 30702), (714, 28724), (731, 28056), (903, 22712), (952, 21543), (1002, 20468), (1032, 19873), (1169, 17544), (1204, 17034), (1336, 15351), (1428, 14362), (1462, 14028), (1806, 11356), (2004, 10234), (2193, 9352), (2338, 8772), (2408, 8517), (2839, 7224), (2856, 7181), (2924, 7014), (3507, 5848), (3612, 5678), (4008, 5117), (4386, 4676)]