266320

素因数分解:

$2^4\times 5^1\times {\mathrm{3329}}^1$

素因数の和:3342

約数の個数: 20

約数和(自身を含む): 619380

約数和(自身を除く): 353060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3329, 6658, 13316, 16645, 26632, 33290, 53264, 66580, 133160, 266320]

約数ペア:

[(1, 266320), (2, 133160), (4, 66580), (5, 53264), (8, 33290), (10, 26632), (16, 16645), (20, 13316), (40, 6658), (80, 3329)]