25608740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 56548800

約数和(自身を除く): 30940060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 659, 670, 1318, 1340, 1943, 2636, 3295, 3886, 6590, 7772, 9715, 13180, 19111, 19430, 38222, 38860, 44153, 76444, 88306, 95555, 176612, 191110, 220765, 382220, 441530, 883060, 1280437, 2560874, 5121748, 6402185, 12804370, 25608740]

約数ペア:

[(1, 25608740), (2, 12804370), (4, 6402185), (5, 5121748), (10, 2560874), (20, 1280437), (29, 883060), (58, 441530), (67, 382220), (116, 220765), (134, 191110), (145, 176612), (268, 95555), (290, 88306), (335, 76444), (580, 44153), (659, 38860), (670, 38222), (1318, 19430), (1340, 19111), (1943, 13180), (2636, 9715), (3295, 7772), (3886, 6590)]