20059098920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{821}}^1\times {\mathrm{1229}}^1$

素因数の和:2139

約数の個数: 128

約数和(自身を含む): 52413350400

約数和(自身を除く): 32354251480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 821, 994, 1229, 1420, 1642, 1988, 2458, 2485, 2840, 3284, 3976, 4105, 4916, 4970, 5747, 6145, 6568, 8210, 8603, 9832, 9940, 11494, 12290, 16420, 17206, 19880, 22988, 24580, 28735, 32840, 34412, 43015, 45976, 49160, 57470, 58291, 68824, 86030, 87259, 114940, 116582, 172060, 174518, 229880, 233164, 291455, 344120, 349036, 408037, 436295, 466328, 582910, 610813, 698072, 816074, 872590, 1009009, 1165820, 1221626, 1632148, 1745180, 2018018, 2040185, 2331640, 2443252, 3054065, 3264296, 3490360, 4036036, 4080370, 4886504, 5045045, 6108130, 7063063, 8072072, 8160740, 10090090, 12216260, 14126126, 16321480, 20180180, 24432520, 28252252, 35315315, 40360360, 56504504, 70630630, 71639639, 141261260, 143279278, 282522520, 286558556, 358198195, 501477473, 573117112, 716396390, 1002954946, 1432792780, 2005909892, 2507387365, 2865585560, 4011819784, 5014774730, 10029549460, 20059098920]

約数ペア:

[(1, 20059098920), (2, 10029549460), (4, 5014774730), (5, 4011819784), (7, 2865585560), (8, 2507387365), (10, 2005909892), (14, 1432792780), (20, 1002954946), (28, 716396390), (35, 573117112), (40, 501477473), (56, 358198195), (70, 286558556), (71, 282522520), (140, 143279278), (142, 141261260), (280, 71639639), (284, 70630630), (355, 56504504), (497, 40360360), (568, 35315315), (710, 28252252), (821, 24432520), (994, 20180180), (1229, 16321480), (1420, 14126126), (1642, 12216260), (1988, 10090090), (2458, 8160740), (2485, 8072072), (2840, 7063063), (3284, 6108130), (3976, 5045045), (4105, 4886504), (4916, 4080370), (4970, 4036036), (5747, 3490360), (6145, 3264296), (6568, 3054065), (8210, 2443252), (8603, 2331640), (9832, 2040185), (9940, 2018018), (11494, 1745180), (12290, 1632148), (16420, 1221626), (17206, 1165820), (19880, 1009009), (22988, 872590), (24580, 816074), (28735, 698072), (32840, 610813), (34412, 582910), (43015, 466328), (45976, 436295), (49160, 408037), (57470, 349036), (58291, 344120), (68824, 291455), (86030, 233164), (87259, 229880), (114940, 174518), (116582, 172060)]