20965512

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2050

約数の個数: 64

約数和(自身を含む): 57600000

約数和(自身を除く): 36634488

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 23, 24, 38, 46, 57, 69, 76, 92, 114, 138, 152, 184, 228, 276, 437, 456, 552, 874, 1311, 1748, 1999, 2622, 3496, 3998, 5244, 5997, 7996, 10488, 11994, 15992, 23988, 37981, 45977, 47976, 75962, 91954, 113943, 137931, 151924, 183908, 227886, 275862, 303848, 367816, 455772, 551724, 873563, 911544, 1103448, 1747126, 2620689, 3494252, 5241378, 6988504, 10482756, 20965512]

約数ペア:

[(1, 20965512), (2, 10482756), (3, 6988504), (4, 5241378), (6, 3494252), (8, 2620689), (12, 1747126), (19, 1103448), (23, 911544), (24, 873563), (38, 551724), (46, 455772), (57, 367816), (69, 303848), (76, 275862), (92, 227886), (114, 183908), (138, 151924), (152, 137931), (184, 113943), (228, 91954), (276, 75962), (437, 47976), (456, 45977), (552, 37981), (874, 23988), (1311, 15992), (1748, 11994), (1999, 10488), (2622, 7996), (3496, 5997), (3998, 5244)]