238735480

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{19441}}^1$

素因数の和:19759

約数の個数: 32

約数和(自身を含む): 538932240

約数和(自身を除く): 300196760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 19441, 38882, 77764, 97205, 155528, 194410, 388820, 777640, 5968387, 11936774, 23873548, 29841935, 47747096, 59683870, 119367740, 238735480]

約数ペア:

[(1, 238735480), (2, 119367740), (4, 59683870), (5, 47747096), (8, 29841935), (10, 23873548), (20, 11936774), (40, 5968387), (307, 777640), (614, 388820), (1228, 194410), (1535, 155528), (2456, 97205), (3070, 77764), (6140, 38882), (12280, 19441)]