81979927216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1\times {\mathrm{19163}}^1$

素因数の和:19514

約数の個数: 80

約数和(自身を含む): 175658757120

約数和(自身を除く): 93678829904

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 109, 176, 218, 223, 436, 446, 872, 892, 1199, 1744, 1784, 2398, 2453, 3568, 4796, 4906, 9592, 9812, 19163, 19184, 19624, 24307, 38326, 39248, 48614, 76652, 97228, 153304, 194456, 210793, 267377, 306608, 388912, 421586, 534754, 843172, 1069508, 1686344, 2088767, 2139016, 3372688, 4177534, 4273349, 4278032, 8355068, 8546698, 16710136, 17093396, 22976437, 33420272, 34186792, 45952874, 47006839, 68373584, 91905748, 94013678, 183811496, 188027356, 367622992, 376054712, 465795041, 752109424, 931590082, 1863180164, 3726360328, 5123745451, 7452720656, 10247490902, 20494981804, 40989963608, 81979927216]

約数ペア:

[(1, 81979927216), (2, 40989963608), (4, 20494981804), (8, 10247490902), (11, 7452720656), (16, 5123745451), (22, 3726360328), (44, 1863180164), (88, 931590082), (109, 752109424), (176, 465795041), (218, 376054712), (223, 367622992), (436, 188027356), (446, 183811496), (872, 94013678), (892, 91905748), (1199, 68373584), (1744, 47006839), (1784, 45952874), (2398, 34186792), (2453, 33420272), (3568, 22976437), (4796, 17093396), (4906, 16710136), (9592, 8546698), (9812, 8355068), (19163, 4278032), (19184, 4273349), (19624, 4177534), (24307, 3372688), (38326, 2139016), (39248, 2088767), (48614, 1686344), (76652, 1069508), (97228, 843172), (153304, 534754), (194456, 421586), (210793, 388912), (267377, 306608)]