289285025

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{12041}}^1$

素因数の和:12113

約数の個数: 18

約数和(自身を含む): 370688886

約数和(自身を除く): 81403861

約数列:

[1, 5, 25, 31, 155, 775, 961, 4805, 12041, 24025, 60205, 301025, 373271, 1866355, 9331775, 11571401, 57857005, 289285025]

約数ペア:

[(1, 289285025), (5, 57857005), (25, 11571401), (31, 9331775), (155, 1866355), (775, 373271), (961, 301025), (4805, 60205), (12041, 24025)]