126720812

素因数分解:

$2^2\times {\mathrm{199}}^1\times {\mathrm{397}}^1\times {\mathrm{401}}^1$

素因数の和:1001

約数の個数: 24

約数和(自身を含む): 223994400

約数和(自身を除く): 97273588

約数列:

[1, 2, 4, 199, 397, 398, 401, 794, 796, 802, 1588, 1604, 79003, 79799, 158006, 159197, 159598, 316012, 318394, 319196, 636788, 31680203, 63360406, 126720812]

約数ペア:

[(1, 126720812), (2, 63360406), (4, 31680203), (199, 636788), (397, 319196), (398, 318394), (401, 316012), (794, 159598), (796, 159197), (802, 158006), (1588, 79799), (1604, 79003)]