27998800

素因数分解:

$2^4\times 5^2\times {\mathrm{69997}}^1$

素因数の和:70015

約数の個数: 30

約数和(自身を含む): 67268078

約数和(自身を除く): 39269278

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 69997, 139994, 279988, 349985, 559976, 699970, 1119952, 1399940, 1749925, 2799880, 3499850, 5599760, 6999700, 13999400, 27998800]

約数ペア:

[(1, 27998800), (2, 13999400), (4, 6999700), (5, 5599760), (8, 3499850), (10, 2799880), (16, 1749925), (20, 1399940), (25, 1119952), (40, 699970), (50, 559976), (80, 349985), (100, 279988), (200, 139994), (400, 69997)]