164204920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373193}}^1$

素因数の和:373215

約数の個数: 32

約数和(自身を含む): 403049520

約数和(自身を除く): 238844600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 373193, 746386, 1492772, 1865965, 2985544, 3731930, 4105123, 7463860, 8210246, 14927720, 16420492, 20525615, 32840984, 41051230, 82102460, 164204920]

約数ペア:

[(1, 164204920), (2, 82102460), (4, 41051230), (5, 32840984), (8, 20525615), (10, 16420492), (11, 14927720), (20, 8210246), (22, 7463860), (40, 4105123), (44, 3731930), (55, 2985544), (88, 1865965), (110, 1492772), (220, 746386), (440, 373193)]