388616975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{4153}}^1$

素因数の和:4379

約数の個数: 24

約数和(自身を含む): 509945040

約数和(自身を除く): 121328065

約数列:

[1, 5, 19, 25, 95, 197, 475, 985, 3743, 4153, 4925, 18715, 20765, 78907, 93575, 103825, 394535, 818141, 1972675, 4090705, 15544679, 20453525, 77723395, 388616975]

約数ペア:

[(1, 388616975), (5, 77723395), (19, 20453525), (25, 15544679), (95, 4090705), (197, 1972675), (475, 818141), (985, 394535), (3743, 103825), (4153, 93575), (4925, 78907), (18715, 20765)]