19827520

素因数分解:

$2^6\times 5^1\times {\mathrm{61961}}^1$

素因数の和:61978

約数の個数: 28

約数和(自身を含む): 47215044

約数和(自身を除く): 27387524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 61961, 123922, 247844, 309805, 495688, 619610, 991376, 1239220, 1982752, 2478440, 3965504, 4956880, 9913760, 19827520]

約数ペア:

[(1, 19827520), (2, 9913760), (4, 4956880), (5, 3965504), (8, 2478440), (10, 1982752), (16, 1239220), (20, 991376), (32, 619610), (40, 495688), (64, 309805), (80, 247844), (160, 123922), (320, 61961)]