19878080

素因数分解:

$2^6\times 5^1\times {\mathrm{62119}}^1$

素因数の和:62136

約数の個数: 28

約数和(自身を含む): 47335440

約数和(自身を除く): 27457360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 62119, 124238, 248476, 310595, 496952, 621190, 993904, 1242380, 1987808, 2484760, 3975616, 4969520, 9939040, 19878080]

約数ペア:

[(1, 19878080), (2, 9939040), (4, 4969520), (5, 3975616), (8, 2484760), (10, 1987808), (16, 1242380), (20, 993904), (32, 621190), (40, 496952), (64, 310595), (80, 248476), (160, 124238), (320, 62119)]