81281568

素因数分解:

$2^5\times 3^1\times {\mathrm{83}}^1\times {\mathrm{101}}^2$

素因数の和:298

約数の個数: 72

約数和(自身を含む): 218093904

約数和(自身を除く): 136812336

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 83, 96, 101, 166, 202, 249, 303, 332, 404, 498, 606, 664, 808, 996, 1212, 1328, 1616, 1992, 2424, 2656, 3232, 3984, 4848, 7968, 8383, 9696, 10201, 16766, 20402, 25149, 30603, 33532, 40804, 50298, 61206, 67064, 81608, 100596, 122412, 134128, 163216, 201192, 244824, 268256, 326432, 402384, 489648, 804768, 846683, 979296, 1693366, 2540049, 3386732, 5080098, 6773464, 10160196, 13546928, 20320392, 27093856, 40640784, 81281568]

約数ペア:

[(1, 81281568), (2, 40640784), (3, 27093856), (4, 20320392), (6, 13546928), (8, 10160196), (12, 6773464), (16, 5080098), (24, 3386732), (32, 2540049), (48, 1693366), (83, 979296), (96, 846683), (101, 804768), (166, 489648), (202, 402384), (249, 326432), (303, 268256), (332, 244824), (404, 201192), (498, 163216), (606, 134128), (664, 122412), (808, 100596), (996, 81608), (1212, 67064), (1328, 61206), (1616, 50298), (1992, 40804), (2424, 33532), (2656, 30603), (3232, 25149), (3984, 20402), (4848, 16766), (7968, 10201), (8383, 9696)]