1720820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 3645600

約数和(自身を除く): 1924780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 619, 695, 1238, 1390, 2476, 2780, 3095, 6190, 12380, 86041, 172082, 344164, 430205, 860410, 1720820]

約数ペア:

[(1, 1720820), (2, 860410), (4, 430205), (5, 344164), (10, 172082), (20, 86041), (139, 12380), (278, 6190), (556, 3095), (619, 2780), (695, 2476), (1238, 1390)]