156645520

素因数分解:

$2^4\times 5^1\times {\mathrm{1958069}}^1$

素因数の和:1958082

約数の個数: 20

約数和(自身を含む): 364201020

約数和(自身を除く): 207555500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1958069, 3916138, 7832276, 9790345, 15664552, 19580690, 31329104, 39161380, 78322760, 156645520]

約数ペア:

[(1, 156645520), (2, 78322760), (4, 39161380), (5, 31329104), (8, 19580690), (10, 15664552), (16, 9790345), (20, 7832276), (40, 3916138), (80, 1958069)]