217760

素因数分解:

$2^5\times 5^1\times {\mathrm{1361}}^1$

素因数の和:1376

約数の個数: 24

約数和(自身を含む): 514836

約数和(自身を除く): 297076

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1361, 2722, 5444, 6805, 10888, 13610, 21776, 27220, 43552, 54440, 108880, 217760]

約数ペア:

[(1, 217760), (2, 108880), (4, 54440), (5, 43552), (8, 27220), (10, 21776), (16, 13610), (20, 10888), (32, 6805), (40, 5444), (80, 2722), (160, 1361)]