81213456

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1423}}^1$

素因数の和:1504

約数の個数: 80

約数和(自身を含む): 222485760

約数和(自身を除く): 141272304

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 41, 48, 58, 82, 87, 116, 123, 164, 174, 232, 246, 328, 348, 464, 492, 656, 696, 984, 1189, 1392, 1423, 1968, 2378, 2846, 3567, 4269, 4756, 5692, 7134, 8538, 9512, 11384, 14268, 17076, 19024, 22768, 28536, 34152, 41267, 57072, 58343, 68304, 82534, 116686, 123801, 165068, 175029, 233372, 247602, 330136, 350058, 466744, 495204, 660272, 700116, 933488, 990408, 1400232, 1691947, 1980816, 2800464, 3383894, 5075841, 6767788, 10151682, 13535576, 20303364, 27071152, 40606728, 81213456]

約数ペア:

[(1, 81213456), (2, 40606728), (3, 27071152), (4, 20303364), (6, 13535576), (8, 10151682), (12, 6767788), (16, 5075841), (24, 3383894), (29, 2800464), (41, 1980816), (48, 1691947), (58, 1400232), (82, 990408), (87, 933488), (116, 700116), (123, 660272), (164, 495204), (174, 466744), (232, 350058), (246, 330136), (328, 247602), (348, 233372), (464, 175029), (492, 165068), (656, 123801), (696, 116686), (984, 82534), (1189, 68304), (1392, 58343), (1423, 57072), (1968, 41267), (2378, 34152), (2846, 28536), (3567, 22768), (4269, 19024), (4756, 17076), (5692, 14268), (7134, 11384), (8538, 9512)]