81665018

素因数分解:

$2^1\times {\mathrm{211}}^1\times {\mathrm{431}}^1\times {\mathrm{449}}^1$

素因数の和:1093

約数の個数: 16

約数和(自身を含む): 123638400

約数和(自身を除く): 41973382

約数列:

[1, 2, 211, 422, 431, 449, 862, 898, 90941, 94739, 181882, 189478, 193519, 387038, 40832509, 81665018]

約数ペア:

[(1, 81665018), (2, 40832509), (211, 387038), (422, 193519), (431, 189478), (449, 181882), (862, 94739), (898, 90941)]