81360260

素因数分解:

$2^2\times 5^1\times {\mathrm{827}}^1\times {\mathrm{4919}}^1$

素因数の和:5755

約数の個数: 24

約数和(自身を含む): 171097920

約数和(自身を除く): 89737660

約数列:

[1, 2, 4, 5, 10, 20, 827, 1654, 3308, 4135, 4919, 8270, 9838, 16540, 19676, 24595, 49190, 98380, 4068013, 8136026, 16272052, 20340065, 40680130, 81360260]

約数ペア:

[(1, 81360260), (2, 40680130), (4, 20340065), (5, 16272052), (10, 8136026), (20, 4068013), (827, 98380), (1654, 49190), (3308, 24595), (4135, 19676), (4919, 16540), (8270, 9838)]