20165728232

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1\times {\mathrm{10711}}^1$

素因数の和:11194

約数の個数: 64

約数和(自身を含む): 41769087360

約数和(自身を除く): 21603359128

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 421, 559, 842, 1118, 1684, 2236, 3368, 4472, 5473, 10711, 10946, 18103, 21422, 21892, 36206, 42844, 43784, 72412, 85688, 139243, 144824, 235339, 278486, 460573, 470678, 556972, 921146, 941356, 1113944, 1842292, 1882712, 3684584, 4509331, 5987449, 9018662, 11974898, 18037324, 23949796, 36074648, 47899592, 58621303, 117242606, 193901233, 234485212, 387802466, 468970424, 775604932, 1551209864, 2520716029, 5041432058, 10082864116, 20165728232]

約数ペア:

[(1, 20165728232), (2, 10082864116), (4, 5041432058), (8, 2520716029), (13, 1551209864), (26, 775604932), (43, 468970424), (52, 387802466), (86, 234485212), (104, 193901233), (172, 117242606), (344, 58621303), (421, 47899592), (559, 36074648), (842, 23949796), (1118, 18037324), (1684, 11974898), (2236, 9018662), (3368, 5987449), (4472, 4509331), (5473, 3684584), (10711, 1882712), (10946, 1842292), (18103, 1113944), (21422, 941356), (21892, 921146), (36206, 556972), (42844, 470678), (43784, 460573), (72412, 278486), (85688, 235339), (139243, 144824)]