289063280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{328481}}^1$

素因数の和:328505

約数の個数: 40

約数和(自身を含む): 733171824

約数和(自身を除く): 444108544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 328481, 656962, 1313924, 1642405, 2627848, 3284810, 3613291, 5255696, 6569620, 7226582, 13139240, 14453164, 18066455, 26278480, 28906328, 36132910, 57812656, 72265820, 144531640, 289063280]

約数ペア:

[(1, 289063280), (2, 144531640), (4, 72265820), (5, 57812656), (8, 36132910), (10, 28906328), (11, 26278480), (16, 18066455), (20, 14453164), (22, 13139240), (40, 7226582), (44, 6569620), (55, 5255696), (80, 3613291), (88, 3284810), (110, 2627848), (176, 1642405), (220, 1313924), (440, 656962), (880, 328481)]