81620336

素因数分解:

$2^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{5563}}^1$

素因数の和:5709

約数の個数: 40

約数和(自身を含む): 182143104

約数和(自身を除く): 100522768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 131, 262, 524, 917, 1048, 1834, 2096, 3668, 5563, 7336, 11126, 14672, 22252, 38941, 44504, 77882, 89008, 155764, 311528, 623056, 728753, 1457506, 2915012, 5101271, 5830024, 10202542, 11660048, 20405084, 40810168, 81620336]

約数ペア:

[(1, 81620336), (2, 40810168), (4, 20405084), (7, 11660048), (8, 10202542), (14, 5830024), (16, 5101271), (28, 2915012), (56, 1457506), (112, 728753), (131, 623056), (262, 311528), (524, 155764), (917, 89008), (1048, 77882), (1834, 44504), (2096, 38941), (3668, 22252), (5563, 14672), (7336, 11126)]