20147803795

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1\times {\mathrm{30871}}^1$

素因数の和:31555

約数の個数: 32

約数和(自身を含む): 28629457920

約数和(自身を除く): 8481654125

約数列:

[1, 5, 7, 29, 35, 145, 203, 643, 1015, 3215, 4501, 18647, 22505, 30871, 93235, 130529, 154355, 216097, 652645, 895259, 1080485, 4476295, 6266813, 19850053, 31334065, 99250265, 138950371, 575651537, 694751855, 2878257685, 4029560759, 20147803795]

約数ペア:

[(1, 20147803795), (5, 4029560759), (7, 2878257685), (29, 694751855), (35, 575651537), (145, 138950371), (203, 99250265), (643, 31334065), (1015, 19850053), (3215, 6266813), (4501, 4476295), (18647, 1080485), (22505, 895259), (30871, 652645), (93235, 216097), (130529, 154355)]