1900400

素因数分解:

$2^4\times 5^2\times {\mathrm{4751}}^1$

素因数の和:4769

約数の個数: 30

約数和(自身を含む): 4566672

約数和(自身を除く): 2666272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4751, 9502, 19004, 23755, 38008, 47510, 76016, 95020, 118775, 190040, 237550, 380080, 475100, 950200, 1900400]

約数ペア:

[(1, 1900400), (2, 950200), (4, 475100), (5, 380080), (8, 237550), (10, 190040), (16, 118775), (20, 95020), (25, 76016), (40, 47510), (50, 38008), (80, 23755), (100, 19004), (200, 9502), (400, 4751)]