18940720015

素因数分解:

$5^1\times 7^1\times {\mathrm{2729}}^1\times {\mathrm{198301}}^1$

素因数の和:201042

約数の個数: 16

約数和(自身を含む): 25985494080

約数和(自身を除く): 7044774065

約数列:

[1, 5, 7, 35, 2729, 13645, 19103, 95515, 198301, 991505, 1388107, 6940535, 541163429, 2705817145, 3788144003, 18940720015]

約数ペア:

[(1, 18940720015), (5, 3788144003), (7, 2705817145), (35, 541163429), (2729, 6940535), (13645, 1388107), (19103, 991505), (95515, 198301)]