168565520

素因数分解:

$2^4\times 5^1\times {\mathrm{2107069}}^1$

素因数の和:2107082

約数の個数: 20

約数和(自身を含む): 391915020

約数和(自身を除く): 223349500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2107069, 4214138, 8428276, 10535345, 16856552, 21070690, 33713104, 42141380, 84282760, 168565520]

約数ペア:

[(1, 168565520), (2, 84282760), (4, 42141380), (5, 33713104), (8, 21070690), (10, 16856552), (16, 10535345), (20, 8428276), (40, 4214138), (80, 2107069)]