204499408

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{81409}}^1$

素因数の和:81574

約数の個数: 20

約数和(自身を含む): 398746180

約数和(自身を除く): 194246772

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 81409, 162818, 325636, 651272, 1302544, 12781213, 25562426, 51124852, 102249704, 204499408]

約数ペア:

[(1, 204499408), (2, 102249704), (4, 51124852), (8, 25562426), (16, 12781213), (157, 1302544), (314, 651272), (628, 325636), (1256, 162818), (2512, 81409)]