81334864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{3079}}^1$

素因数の和:3227

約数の個数: 40

約数和(自身を含む): 171100160

約数和(自身を除く): 89765296

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 1016, 1651, 2032, 3079, 3302, 6158, 6604, 12316, 13208, 24632, 26416, 40027, 49264, 80054, 160108, 320216, 391033, 640432, 782066, 1564132, 3128264, 5083429, 6256528, 10166858, 20333716, 40667432, 81334864]

約数ペア:

[(1, 81334864), (2, 40667432), (4, 20333716), (8, 10166858), (13, 6256528), (16, 5083429), (26, 3128264), (52, 1564132), (104, 782066), (127, 640432), (208, 391033), (254, 320216), (508, 160108), (1016, 80054), (1651, 49264), (2032, 40027), (3079, 26416), (3302, 24632), (6158, 13208), (6604, 12316)]