91111210

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{22721}}^1$

素因数の和:23129

約数の個数: 16

約数和(自身を含む): 164416392

約数和(自身を除く): 73305182

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 22721, 45442, 113605, 227210, 9111121, 18222242, 45555605, 91111210]

約数ペア:

[(1, 91111210), (2, 45555605), (5, 18222242), (10, 9111121), (401, 227210), (802, 113605), (2005, 45442), (4010, 22721)]