18120215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{7351}}^1$

素因数の和:7402

約数の個数: 16

約数和(自身を含む): 23820480

約数和(自身を除く): 5700265

約数列:

[1, 5, 17, 29, 85, 145, 493, 2465, 7351, 36755, 124967, 213179, 624835, 1065895, 3624043, 18120215]

約数ペア:

[(1, 18120215), (5, 3624043), (17, 1065895), (29, 624835), (85, 213179), (145, 124967), (493, 36755), (2465, 7351)]