81202120

素因数分解:

$2^3\times 5^1\times {\mathrm{2030053}}^1$

素因数の和:2030064

約数の個数: 16

約数和(自身を含む): 182704860

約数和(自身を除く): 101502740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2030053, 4060106, 8120212, 10150265, 16240424, 20300530, 40601060, 81202120]

約数ペア:

[(1, 81202120), (2, 40601060), (4, 20300530), (5, 16240424), (8, 10150265), (10, 8120212), (20, 4060106), (40, 2030053)]