39821890

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{20011}}^1$

素因数の和:20217

約数の個数: 16

約数和(自身を含む): 72043200

約数和(自身を除く): 32221310

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 20011, 40022, 100055, 200110, 3982189, 7964378, 19910945, 39821890]

約数ペア:

[(1, 39821890), (2, 19910945), (5, 7964378), (10, 3982189), (199, 200110), (398, 100055), (995, 40022), (1990, 20011)]