2140400

素因数分解:

$2^4\times 5^2\times {\mathrm{5351}}^1$

素因数の和:5369

約数の個数: 30

約数和(自身を含む): 5143272

約数和(自身を除く): 3002872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 5351, 10702, 21404, 26755, 42808, 53510, 85616, 107020, 133775, 214040, 267550, 428080, 535100, 1070200, 2140400]

約数ペア:

[(1, 2140400), (2, 1070200), (4, 535100), (5, 428080), (8, 267550), (10, 214040), (16, 133775), (20, 107020), (25, 85616), (40, 53510), (50, 42808), (80, 26755), (100, 21404), (200, 10702), (400, 5351)]