20047585

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 24532992

約数和(自身を除く): 4485407

約数列:

[1, 5, 127, 131, 241, 635, 655, 1205, 16637, 30607, 31571, 83185, 153035, 157855, 4009517, 20047585]

約数ペア:

[(1, 20047585), (5, 4009517), (127, 157855), (131, 153035), (241, 83185), (635, 31571), (655, 30607), (1205, 16637)]