20681712

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:199

約数の個数: 120

約数和(自身を含む): 61746048

約数和(自身を除く): 41064336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 41, 48, 62, 72, 82, 93, 113, 123, 124, 144, 164, 186, 226, 246, 248, 279, 328, 339, 369, 372, 452, 492, 496, 558, 656, 678, 738, 744, 904, 984, 1017, 1116, 1271, 1356, 1476, 1488, 1808, 1968, 2034, 2232, 2542, 2712, 2952, 3503, 3813, 4068, 4464, 4633, 5084, 5424, 5904, 7006, 7626, 8136, 9266, 10168, 10509, 11439, 13899, 14012, 15252, 16272, 18532, 20336, 21018, 22878, 27798, 28024, 30504, 31527, 37064, 41697, 42036, 45756, 55596, 56048, 61008, 63054, 74128, 83394, 84072, 91512, 111192, 126108, 143623, 166788, 168144, 183024, 222384, 252216, 287246, 333576, 430869, 504432, 574492, 667152, 861738, 1148984, 1292607, 1723476, 2297968, 2585214, 3446952, 5170428, 6893904, 10340856, 20681712]

約数ペア:

[(1, 20681712), (2, 10340856), (3, 6893904), (4, 5170428), (6, 3446952), (8, 2585214), (9, 2297968), (12, 1723476), (16, 1292607), (18, 1148984), (24, 861738), (31, 667152), (36, 574492), (41, 504432), (48, 430869), (62, 333576), (72, 287246), (82, 252216), (93, 222384), (113, 183024), (123, 168144), (124, 166788), (144, 143623), (164, 126108), (186, 111192), (226, 91512), (246, 84072), (248, 83394), (279, 74128), (328, 63054), (339, 61008), (369, 56048), (372, 55596), (452, 45756), (492, 42036), (496, 41697), (558, 37064), (656, 31527), (678, 30504), (738, 28024), (744, 27798), (904, 22878), (984, 21018), (1017, 20336), (1116, 18532), (1271, 16272), (1356, 15252), (1476, 14012), (1488, 13899), (1808, 11439), (1968, 10509), (2034, 10168), (2232, 9266), (2542, 8136), (2712, 7626), (2952, 7006), (3503, 5904), (3813, 5424), (4068, 5084), (4464, 4633)]