27990340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199931}}^1$

素因数の和:199947

約数の個数: 24

約数和(自身を含む): 67177152

約数和(自身を除く): 39186812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199931, 399862, 799724, 999655, 1399517, 1999310, 2799034, 3998620, 5598068, 6997585, 13995170, 27990340]

約数ペア:

[(1, 27990340), (2, 13995170), (4, 6997585), (5, 5598068), (7, 3998620), (10, 2799034), (14, 1999310), (20, 1399517), (28, 999655), (35, 799724), (70, 399862), (140, 199931)]