81227888

素因数分解:

$2^4\times 7^3\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 120

約数和(自身を含む): 198424800

約数和(自身を除く): 117196912

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 41, 49, 56, 76, 82, 98, 112, 133, 152, 164, 196, 266, 287, 304, 328, 343, 361, 392, 532, 574, 656, 686, 722, 779, 784, 931, 1064, 1148, 1372, 1444, 1558, 1862, 2009, 2128, 2296, 2527, 2744, 2888, 3116, 3724, 4018, 4592, 5054, 5453, 5488, 5776, 6232, 6517, 7448, 8036, 10108, 10906, 12464, 13034, 14063, 14801, 14896, 16072, 17689, 20216, 21812, 26068, 28126, 29602, 32144, 35378, 38171, 40432, 43624, 52136, 56252, 59204, 70756, 76342, 87248, 103607, 104272, 112504, 118408, 123823, 141512, 152684, 207214, 225008, 236816, 247646, 267197, 283024, 305368, 414428, 495292, 534394, 610736, 725249, 828856, 990584, 1068788, 1450498, 1657712, 1981168, 2137576, 2900996, 4275152, 5076743, 5801992, 10153486, 11603984, 20306972, 40613944, 81227888]

約数ペア:

[(1, 81227888), (2, 40613944), (4, 20306972), (7, 11603984), (8, 10153486), (14, 5801992), (16, 5076743), (19, 4275152), (28, 2900996), (38, 2137576), (41, 1981168), (49, 1657712), (56, 1450498), (76, 1068788), (82, 990584), (98, 828856), (112, 725249), (133, 610736), (152, 534394), (164, 495292), (196, 414428), (266, 305368), (287, 283024), (304, 267197), (328, 247646), (343, 236816), (361, 225008), (392, 207214), (532, 152684), (574, 141512), (656, 123823), (686, 118408), (722, 112504), (779, 104272), (784, 103607), (931, 87248), (1064, 76342), (1148, 70756), (1372, 59204), (1444, 56252), (1558, 52136), (1862, 43624), (2009, 40432), (2128, 38171), (2296, 35378), (2527, 32144), (2744, 29602), (2888, 28126), (3116, 26068), (3724, 21812), (4018, 20216), (4592, 17689), (5054, 16072), (5453, 14896), (5488, 14801), (5776, 14063), (6232, 13034), (6517, 12464), (7448, 10906), (8036, 10108)]