39891208

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 88473600

約数和(自身を除く): 48582392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 79, 127, 142, 158, 254, 284, 316, 497, 508, 553, 568, 632, 889, 994, 1016, 1106, 1778, 1988, 2212, 3556, 3976, 4424, 5609, 7112, 9017, 10033, 11218, 18034, 20066, 22436, 36068, 39263, 40132, 44872, 63119, 70231, 72136, 78526, 80264, 126238, 140462, 157052, 252476, 280924, 314104, 504952, 561848, 712343, 1424686, 2849372, 4986401, 5698744, 9972802, 19945604, 39891208]

約数ペア:

[(1, 39891208), (2, 19945604), (4, 9972802), (7, 5698744), (8, 4986401), (14, 2849372), (28, 1424686), (56, 712343), (71, 561848), (79, 504952), (127, 314104), (142, 280924), (158, 252476), (254, 157052), (284, 140462), (316, 126238), (497, 80264), (508, 78526), (553, 72136), (568, 70231), (632, 63119), (889, 44872), (994, 40132), (1016, 39263), (1106, 36068), (1778, 22436), (1988, 20066), (2212, 18034), (3556, 11218), (3976, 10033), (4424, 9017), (5609, 7112)]