219177520

素因数分解:

$2^4\times 5^1\times {\mathrm{2739719}}^1$

素因数の和:2739732

約数の個数: 20

約数和(自身を含む): 509587920

約数和(自身を除く): 290410400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2739719, 5479438, 10958876, 13698595, 21917752, 27397190, 43835504, 54794380, 109588760, 219177520]

約数ペア:

[(1, 219177520), (2, 109588760), (4, 54794380), (5, 43835504), (8, 27397190), (10, 21917752), (16, 13698595), (20, 10958876), (40, 5479438), (80, 2739719)]