20105725

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{317}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 26025120

約数和(自身を除く): 5919395

約数列:

[1, 5, 25, 43, 59, 215, 295, 317, 1075, 1475, 1585, 2537, 7925, 12685, 13631, 18703, 63425, 68155, 93515, 340775, 467575, 804229, 4021145, 20105725]

約数ペア:

[(1, 20105725), (5, 4021145), (25, 804229), (43, 467575), (59, 340775), (215, 93515), (295, 68155), (317, 63425), (1075, 18703), (1475, 13631), (1585, 12685), (2537, 7925)]