159796720

素因数分解:

$2^4\times 5^1\times {\mathrm{1997459}}^1$

素因数の和:1997472

約数の個数: 20

約数和(自身を含む): 371527560

約数和(自身を除く): 211730840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1997459, 3994918, 7989836, 9987295, 15979672, 19974590, 31959344, 39949180, 79898360, 159796720]

約数ペア:

[(1, 159796720), (2, 79898360), (4, 39949180), (5, 31959344), (8, 19974590), (10, 15979672), (16, 9987295), (20, 7989836), (40, 3994918), (80, 1997459)]