21438800

素因数分解:

$2^4\times 5^2\times {\mathrm{53597}}^1$

素因数の和:53615

約数の個数: 30

約数和(自身を含む): 51507678

約数和(自身を除く): 30068878

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53597, 107194, 214388, 267985, 428776, 535970, 857552, 1071940, 1339925, 2143880, 2679850, 4287760, 5359700, 10719400, 21438800]

約数ペア:

[(1, 21438800), (2, 10719400), (4, 5359700), (5, 4287760), (8, 2679850), (10, 2143880), (16, 1339925), (20, 1071940), (25, 857552), (40, 535970), (50, 428776), (80, 267985), (100, 214388), (200, 107194), (400, 53597)]