51208400

素因数分解:

$2^4\times 5^2\times {\mathrm{128021}}^1$

素因数の和:128039

約数の個数: 30

約数和(自身を含む): 123029142

約数和(自身を除く): 71820742

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128021, 256042, 512084, 640105, 1024168, 1280210, 2048336, 2560420, 3200525, 5120840, 6401050, 10241680, 12802100, 25604200, 51208400]

約数ペア:

[(1, 51208400), (2, 25604200), (4, 12802100), (5, 10241680), (8, 6401050), (10, 5120840), (16, 3200525), (20, 2560420), (25, 2048336), (40, 1280210), (50, 1024168), (80, 640105), (100, 512084), (200, 256042), (400, 128021)]