18732490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 40497408

約数和(自身を除く): 21764918

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 61, 70, 82, 107, 122, 205, 214, 287, 305, 410, 427, 535, 574, 610, 749, 854, 1070, 1435, 1498, 2135, 2501, 2870, 3745, 4270, 4387, 5002, 6527, 7490, 8774, 12505, 13054, 17507, 21935, 25010, 30709, 32635, 35014, 43870, 45689, 61418, 65270, 87535, 91378, 153545, 175070, 228445, 267607, 307090, 456890, 535214, 1338035, 1873249, 2676070, 3746498, 9366245, 18732490]

約数ペア:

[(1, 18732490), (2, 9366245), (5, 3746498), (7, 2676070), (10, 1873249), (14, 1338035), (35, 535214), (41, 456890), (61, 307090), (70, 267607), (82, 228445), (107, 175070), (122, 153545), (205, 91378), (214, 87535), (287, 65270), (305, 61418), (410, 45689), (427, 43870), (535, 35014), (574, 32635), (610, 30709), (749, 25010), (854, 21935), (1070, 17507), (1435, 13054), (1498, 12505), (2135, 8774), (2501, 7490), (2870, 6527), (3745, 5002), (4270, 4387)]