26686280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10937}}^1$

素因数の和:11009

約数の個数: 32

約数和(自身を含む): 61034040

約数和(自身を除く): 34347760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10937, 21874, 43748, 54685, 87496, 109370, 218740, 437480, 667157, 1334314, 2668628, 3335785, 5337256, 6671570, 13343140, 26686280]

約数ペア:

[(1, 26686280), (2, 13343140), (4, 6671570), (5, 5337256), (8, 3335785), (10, 2668628), (20, 1334314), (40, 667157), (61, 437480), (122, 218740), (244, 109370), (305, 87496), (488, 54685), (610, 43748), (1220, 21874), (2440, 10937)]