19832720

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1433}}^1$

素因数の和:1619

約数の個数: 40

約数和(自身を含む): 46409976

約数和(自身を除く): 26577256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1433, 1730, 2768, 2866, 3460, 5732, 6920, 7165, 11464, 13840, 14330, 22928, 28660, 57320, 114640, 247909, 495818, 991636, 1239545, 1983272, 2479090, 3966544, 4958180, 9916360, 19832720]

約数ペア:

[(1, 19832720), (2, 9916360), (4, 4958180), (5, 3966544), (8, 2479090), (10, 1983272), (16, 1239545), (20, 991636), (40, 495818), (80, 247909), (173, 114640), (346, 57320), (692, 28660), (865, 22928), (1384, 14330), (1433, 13840), (1730, 11464), (2768, 7165), (2866, 6920), (3460, 5732)]