79877840

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 160

約数和(自身を含む): 224985600

約数和(自身を除く): 145107760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 49, 56, 70, 71, 80, 82, 98, 112, 140, 142, 164, 196, 205, 245, 280, 284, 287, 328, 343, 355, 392, 410, 490, 497, 560, 568, 574, 656, 686, 710, 784, 820, 980, 994, 1136, 1148, 1372, 1420, 1435, 1640, 1715, 1960, 1988, 2009, 2296, 2485, 2744, 2840, 2870, 2911, 3280, 3430, 3479, 3920, 3976, 4018, 4592, 4970, 5488, 5680, 5740, 5822, 6860, 6958, 7952, 8036, 9940, 10045, 11480, 11644, 13720, 13916, 14063, 14555, 16072, 17395, 19880, 20090, 20377, 22960, 23288, 24353, 27440, 27832, 28126, 29110, 32144, 34790, 39760, 40180, 40754, 46576, 48706, 55664, 56252, 58220, 69580, 70315, 80360, 81508, 97412, 101885, 112504, 116440, 121765, 139160, 140630, 142639, 160720, 163016, 194824, 203770, 225008, 232880, 243530, 278320, 281260, 285278, 326032, 389648, 407540, 487060, 562520, 570556, 713195, 815080, 974120, 998473, 1125040, 1141112, 1426390, 1630160, 1948240, 1996946, 2282224, 2852780, 3993892, 4992365, 5705560, 7987784, 9984730, 11411120, 15975568, 19969460, 39938920, 79877840]

約数ペア:

[(1, 79877840), (2, 39938920), (4, 19969460), (5, 15975568), (7, 11411120), (8, 9984730), (10, 7987784), (14, 5705560), (16, 4992365), (20, 3993892), (28, 2852780), (35, 2282224), (40, 1996946), (41, 1948240), (49, 1630160), (56, 1426390), (70, 1141112), (71, 1125040), (80, 998473), (82, 974120), (98, 815080), (112, 713195), (140, 570556), (142, 562520), (164, 487060), (196, 407540), (205, 389648), (245, 326032), (280, 285278), (284, 281260), (287, 278320), (328, 243530), (343, 232880), (355, 225008), (392, 203770), (410, 194824), (490, 163016), (497, 160720), (560, 142639), (568, 140630), (574, 139160), (656, 121765), (686, 116440), (710, 112504), (784, 101885), (820, 97412), (980, 81508), (994, 80360), (1136, 70315), (1148, 69580), (1372, 58220), (1420, 56252), (1435, 55664), (1640, 48706), (1715, 46576), (1960, 40754), (1988, 40180), (2009, 39760), (2296, 34790), (2485, 32144), (2744, 29110), (2840, 28126), (2870, 27832), (2911, 27440), (3280, 24353), (3430, 23288), (3479, 22960), (3920, 20377), (3976, 20090), (4018, 19880), (4592, 17395), (4970, 16072), (5488, 14555), (5680, 14063), (5740, 13916), (5822, 13720), (6860, 11644), (6958, 11480), (7952, 10045), (8036, 9940)]