81577804

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1531}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 179133696

約数和(自身を除く): 97555892

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 173, 308, 346, 692, 1211, 1531, 1903, 2422, 3062, 3806, 4844, 6124, 7612, 10717, 13321, 16841, 21434, 26642, 33682, 42868, 53284, 67364, 117887, 235774, 264863, 471548, 529726, 1059452, 1854041, 2913493, 3708082, 5826986, 7416164, 11653972, 20394451, 40788902, 81577804]

約数ペア:

[(1, 81577804), (2, 40788902), (4, 20394451), (7, 11653972), (11, 7416164), (14, 5826986), (22, 3708082), (28, 2913493), (44, 1854041), (77, 1059452), (154, 529726), (173, 471548), (308, 264863), (346, 235774), (692, 117887), (1211, 67364), (1531, 53284), (1903, 42868), (2422, 33682), (3062, 26642), (3806, 21434), (4844, 16841), (6124, 13321), (7612, 10717)]