20135745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 20224575

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 97, 105, 291, 315, 485, 659, 679, 873, 1455, 1977, 2037, 3295, 3395, 4365, 4613, 5931, 6111, 9885, 10185, 13839, 23065, 29655, 30555, 41517, 63923, 69195, 191769, 207585, 319615, 447461, 575307, 958845, 1342383, 2237305, 2876535, 4027149, 6711915, 20135745]

約数ペア:

[(1, 20135745), (3, 6711915), (5, 4027149), (7, 2876535), (9, 2237305), (15, 1342383), (21, 958845), (35, 575307), (45, 447461), (63, 319615), (97, 207585), (105, 191769), (291, 69195), (315, 63923), (485, 41517), (659, 30555), (679, 29655), (873, 23065), (1455, 13839), (1977, 10185), (2037, 9885), (3295, 6111), (3395, 5931), (4365, 4613)]