51217480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 121176000

約数和(自身を除く): 69958520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 67, 116, 134, 145, 232, 268, 290, 335, 536, 580, 659, 670, 1160, 1318, 1340, 1943, 2636, 2680, 3295, 3886, 5272, 6590, 7772, 9715, 13180, 15544, 19111, 19430, 26360, 38222, 38860, 44153, 76444, 77720, 88306, 95555, 152888, 176612, 191110, 220765, 353224, 382220, 441530, 764440, 883060, 1280437, 1766120, 2560874, 5121748, 6402185, 10243496, 12804370, 25608740, 51217480]

約数ペア:

[(1, 51217480), (2, 25608740), (4, 12804370), (5, 10243496), (8, 6402185), (10, 5121748), (20, 2560874), (29, 1766120), (40, 1280437), (58, 883060), (67, 764440), (116, 441530), (134, 382220), (145, 353224), (232, 220765), (268, 191110), (290, 176612), (335, 152888), (536, 95555), (580, 88306), (659, 77720), (670, 76444), (1160, 44153), (1318, 38860), (1340, 38222), (1943, 26360), (2636, 19430), (2680, 19111), (3295, 15544), (3886, 13180), (5272, 9715), (6590, 7772)]