51330160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1$

素因数の和:1382

約数の個数: 80

約数和(自身を含む): 138419712

約数和(自身を除く): 87089552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1291, 1420, 1988, 2485, 2582, 2840, 3976, 4970, 5164, 5680, 6455, 7952, 9037, 9940, 10328, 12910, 18074, 19880, 20656, 25820, 36148, 39760, 45185, 51640, 72296, 90370, 91661, 103280, 144592, 180740, 183322, 361480, 366644, 458305, 641627, 722960, 733288, 916610, 1283254, 1466576, 1833220, 2566508, 3208135, 3666440, 5133016, 6416270, 7332880, 10266032, 12832540, 25665080, 51330160]

約数ペア:

[(1, 51330160), (2, 25665080), (4, 12832540), (5, 10266032), (7, 7332880), (8, 6416270), (10, 5133016), (14, 3666440), (16, 3208135), (20, 2566508), (28, 1833220), (35, 1466576), (40, 1283254), (56, 916610), (70, 733288), (71, 722960), (80, 641627), (112, 458305), (140, 366644), (142, 361480), (280, 183322), (284, 180740), (355, 144592), (497, 103280), (560, 91661), (568, 90370), (710, 72296), (994, 51640), (1136, 45185), (1291, 39760), (1420, 36148), (1988, 25820), (2485, 20656), (2582, 19880), (2840, 18074), (3976, 12910), (4970, 10328), (5164, 9940), (5680, 9037), (6455, 7952)]