17385520

素因数分解:

$2^4\times 5^1\times {\mathrm{217319}}^1$

素因数の和:217332

約数の個数: 20

約数和(自身を含む): 40421520

約数和(自身を除く): 23036000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 217319, 434638, 869276, 1086595, 1738552, 2173190, 3477104, 4346380, 8692760, 17385520]

約数ペア:

[(1, 17385520), (2, 8692760), (4, 4346380), (5, 3477104), (8, 2173190), (10, 1738552), (16, 1086595), (20, 869276), (40, 434638), (80, 217319)]