19478000

素因数分解:

$2^4\times 5^3\times {\mathrm{9739}}^1$

素因数の和:9762

約数の個数: 40

約数和(自身を含む): 47102640

約数和(自身を除く): 27624640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9739, 19478, 38956, 48695, 77912, 97390, 155824, 194780, 243475, 389560, 486950, 779120, 973900, 1217375, 1947800, 2434750, 3895600, 4869500, 9739000, 19478000]

約数ペア:

[(1, 19478000), (2, 9739000), (4, 4869500), (5, 3895600), (8, 2434750), (10, 1947800), (16, 1217375), (20, 973900), (25, 779120), (40, 486950), (50, 389560), (80, 243475), (100, 194780), (125, 155824), (200, 97390), (250, 77912), (400, 48695), (500, 38956), (1000, 19478), (2000, 9739)]