80358740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52181}}^1$

素因数の和:52208

約数の個数: 48

約数和(自身を含む): 210397824

約数和(自身を除く): 130039084

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52181, 104362, 208724, 260905, 365267, 521810, 573991, 730534, 1043620, 1147982, 1461068, 1826335, 2295964, 2869955, 3652670, 4017937, 5739910, 7305340, 8035874, 11479820, 16071748, 20089685, 40179370, 80358740]

約数ペア:

[(1, 80358740), (2, 40179370), (4, 20089685), (5, 16071748), (7, 11479820), (10, 8035874), (11, 7305340), (14, 5739910), (20, 4017937), (22, 3652670), (28, 2869955), (35, 2295964), (44, 1826335), (55, 1461068), (70, 1147982), (77, 1043620), (110, 730534), (140, 573991), (154, 521810), (220, 365267), (308, 260905), (385, 208724), (770, 104362), (1540, 52181)]