8989855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 13530240

約数和(自身を除く): 4540385

約数列:

[1, 5, 7, 17, 29, 35, 85, 119, 145, 203, 493, 521, 595, 1015, 2465, 2605, 3451, 3647, 8857, 15109, 17255, 18235, 44285, 61999, 75545, 105763, 256853, 309995, 528815, 1284265, 1797971, 8989855]

約数ペア:

[(1, 8989855), (5, 1797971), (7, 1284265), (17, 528815), (29, 309995), (35, 256853), (85, 105763), (119, 75545), (145, 61999), (203, 44285), (493, 18235), (521, 17255), (595, 15109), (1015, 8857), (2465, 3647), (2605, 3451)]