20681464

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{937}}^1$

素因数の和:1063

約数の個数: 32

約数和(自身を含む): 40521600

約数和(自身を除く): 19840136

約数列:

[1, 2, 4, 8, 31, 62, 89, 124, 178, 248, 356, 712, 937, 1874, 2759, 3748, 5518, 7496, 11036, 22072, 29047, 58094, 83393, 116188, 166786, 232376, 333572, 667144, 2585183, 5170366, 10340732, 20681464]

約数ペア:

[(1, 20681464), (2, 10340732), (4, 5170366), (8, 2585183), (31, 667144), (62, 333572), (89, 232376), (124, 166786), (178, 116188), (248, 83393), (356, 58094), (712, 29047), (937, 22072), (1874, 11036), (2759, 7496), (3748, 5518)]