19766000

素因数分解:

$2^4\times 5^3\times {\mathrm{9883}}^1$

素因数の和:9906

約数の個数: 40

約数和(自身を含む): 47799024

約数和(自身を除く): 28033024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9883, 19766, 39532, 49415, 79064, 98830, 158128, 197660, 247075, 395320, 494150, 790640, 988300, 1235375, 1976600, 2470750, 3953200, 4941500, 9883000, 19766000]

約数ペア:

[(1, 19766000), (2, 9883000), (4, 4941500), (5, 3953200), (8, 2470750), (10, 1976600), (16, 1235375), (20, 988300), (25, 790640), (40, 494150), (50, 395320), (80, 247075), (100, 197660), (125, 158128), (200, 98830), (250, 79064), (400, 49415), (500, 39532), (1000, 19766), (2000, 9883)]