3991475

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 5237760

約数和(自身を除く): 1246285

約数列:

[1, 5, 25, 43, 47, 79, 215, 235, 395, 1075, 1175, 1975, 2021, 3397, 3713, 10105, 16985, 18565, 50525, 84925, 92825, 159659, 798295, 3991475]

約数ペア:

[(1, 3991475), (5, 798295), (25, 159659), (43, 92825), (47, 84925), (79, 50525), (215, 18565), (235, 16985), (395, 10105), (1075, 3713), (1175, 3397), (1975, 2021)]