17945180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81569}}^1$

素因数の和:81589

約数の個数: 24

約数和(自身を含む): 41111280

約数和(自身を除く): 23166100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81569, 163138, 326276, 407845, 815690, 897259, 1631380, 1794518, 3589036, 4486295, 8972590, 17945180]

約数ペア:

[(1, 17945180), (2, 8972590), (4, 4486295), (5, 3589036), (10, 1794518), (11, 1631380), (20, 897259), (22, 815690), (44, 407845), (55, 326276), (110, 163138), (220, 81569)]