81037516

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{28099}}^1$

素因数の和:28213

約数の個数: 24

約数和(自身を含む): 163654400

約数和(自身を除く): 82616884

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 28099, 56198, 112396, 196693, 393386, 786772, 2894197, 5788394, 11576788, 20259379, 40518758, 81037516]

約数ペア:

[(1, 81037516), (2, 40518758), (4, 20259379), (7, 11576788), (14, 5788394), (28, 2894197), (103, 786772), (206, 393386), (412, 196693), (721, 112396), (1442, 56198), (2884, 28099)]