217400005

素因数分解:

$5^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1\times {\mathrm{1049}}^1$

素因数の和:1464

約数の個数: 16

約数和(自身を含む): 263718000

約数和(自身を除く): 46317995

約数列:

[1, 5, 181, 229, 905, 1049, 1145, 5245, 41449, 189869, 207245, 240221, 949345, 1201105, 43480001, 217400005]

約数ペア:

[(1, 217400005), (5, 43480001), (181, 1201105), (229, 949345), (905, 240221), (1049, 207245), (1145, 189869), (5245, 41449)]