290128225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{374359}}^1$

素因数の和:374400

約数の個数: 12

約数和(自身を含む): 371365120

約数和(自身を除く): 81236895

約数列:

[1, 5, 25, 31, 155, 775, 374359, 1871795, 9358975, 11605129, 58025645, 290128225]

約数ペア:

[(1, 290128225), (5, 58025645), (25, 11605129), (31, 9358975), (155, 1871795), (775, 374359)]