18401515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 7000085

約数列:

[1, 5, 11, 29, 55, 83, 139, 145, 319, 415, 695, 913, 1529, 1595, 2407, 4031, 4565, 7645, 11537, 12035, 20155, 26477, 44341, 57685, 126907, 132385, 221705, 334573, 634535, 1672865, 3680303, 18401515]

約数ペア:

[(1, 18401515), (5, 3680303), (11, 1672865), (29, 634535), (55, 334573), (83, 221705), (139, 132385), (145, 126907), (319, 57685), (415, 44341), (695, 26477), (913, 20155), (1529, 12035), (1595, 11537), (2407, 7645), (4031, 4565)]