2000288720

素因数分解:

$2^4\times 5^1\times {\mathrm{25003609}}^1$

素因数の和:25003622

約数の個数: 20

約数和(自身を含む): 4650671460

約数和(自身を除く): 2650382740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25003609, 50007218, 100014436, 125018045, 200028872, 250036090, 400057744, 500072180, 1000144360, 2000288720]

約数ペア:

[(1, 2000288720), (2, 1000144360), (4, 500072180), (5, 400057744), (8, 250036090), (10, 200028872), (16, 125018045), (20, 100014436), (40, 50007218), (80, 25003609)]