378713960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{86861}}^1$

素因数の和:86981

約数の個数: 32

約数和(自身を含む): 859933800

約数和(自身を除く): 481219840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 86861, 173722, 347444, 434305, 694888, 868610, 1737220, 3474440, 9467849, 18935698, 37871396, 47339245, 75742792, 94678490, 189356980, 378713960]

約数ペア:

[(1, 378713960), (2, 189356980), (4, 94678490), (5, 75742792), (8, 47339245), (10, 37871396), (20, 18935698), (40, 9467849), (109, 3474440), (218, 1737220), (436, 868610), (545, 694888), (872, 434305), (1090, 347444), (2180, 173722), (4360, 86861)]