2128225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 2946240

約数和(自身を除く): 818015

約数列:

[1, 5, 11, 25, 55, 71, 109, 275, 355, 545, 781, 1199, 1775, 2725, 3905, 5995, 7739, 19525, 29975, 38695, 85129, 193475, 425645, 2128225]

約数ペア:

[(1, 2128225), (5, 425645), (11, 193475), (25, 85129), (55, 38695), (71, 29975), (109, 19525), (275, 7739), (355, 5995), (545, 3905), (781, 2725), (1199, 1775)]