66815480

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{5441}}^1$

素因数の和:5759

約数の個数: 32

約数和(自身を含む): 150852240

約数和(自身を除く): 84036760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 5441, 6140, 10882, 12280, 21764, 27205, 43528, 54410, 108820, 217640, 1670387, 3340774, 6681548, 8351935, 13363096, 16703870, 33407740, 66815480]

約数ペア:

[(1, 66815480), (2, 33407740), (4, 16703870), (5, 13363096), (8, 8351935), (10, 6681548), (20, 3340774), (40, 1670387), (307, 217640), (614, 108820), (1228, 54410), (1535, 43528), (2456, 27205), (3070, 21764), (5441, 12280), (6140, 10882)]