20689621105

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{10837}}^1$

素因数の和:11089

約数の個数: 32

約数和(自身を含む): 26000795520

約数和(自身を除く): 5311174415

約数列:

[1, 5, 41, 67, 139, 205, 335, 695, 2747, 5699, 9313, 10837, 13735, 28495, 46565, 54185, 381833, 444317, 726079, 1506343, 1909165, 2221585, 3630395, 7531715, 29769239, 61760063, 100924981, 148846195, 308800315, 504624905, 4137924221, 20689621105]

約数ペア:

[(1, 20689621105), (5, 4137924221), (41, 504624905), (67, 308800315), (139, 148846195), (205, 100924981), (335, 61760063), (695, 29769239), (2747, 7531715), (5699, 3630395), (9313, 2221585), (10837, 1909165), (13735, 1506343), (28495, 726079), (46565, 444317), (54185, 381833)]