405670256

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{2963}}^1$

素因数の和:3213

約数の個数: 40

約数和(自身を含む): 808579200

約数和(自身を除く): 402908944

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 199, 344, 398, 688, 796, 1592, 2963, 3184, 5926, 8557, 11852, 17114, 23704, 34228, 47408, 68456, 127409, 136912, 254818, 509636, 589637, 1019272, 1179274, 2038544, 2358548, 4717096, 9434192, 25354391, 50708782, 101417564, 202835128, 405670256]

約数ペア:

[(1, 405670256), (2, 202835128), (4, 101417564), (8, 50708782), (16, 25354391), (43, 9434192), (86, 4717096), (172, 2358548), (199, 2038544), (344, 1179274), (398, 1019272), (688, 589637), (796, 509636), (1592, 254818), (2963, 136912), (3184, 127409), (5926, 68456), (8557, 47408), (11852, 34228), (17114, 23704)]