20171957690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22665121}}^1$

素因数の和:22665217

約数の個数: 16

約数和(自身を含む): 36717497640

約数和(自身を除く): 16545539950

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22665121, 45330242, 113325605, 226651210, 2017195769, 4034391538, 10085978845, 20171957690]

約数ペア:

[(1, 20171957690), (2, 10085978845), (5, 4034391538), (10, 2017195769), (89, 226651210), (178, 113325605), (445, 45330242), (890, 22665121)]