20860175

素因数分解:

$5^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{599}}^1$

素因数の和:815

約数の個数: 24

約数和(自身を含む): 29760000

約数和(自身を除く): 8899825

約数列:

[1, 5, 7, 25, 35, 175, 199, 599, 995, 1393, 2995, 4193, 4975, 6965, 14975, 20965, 34825, 104825, 119201, 596005, 834407, 2980025, 4172035, 20860175]

約数ペア:

[(1, 20860175), (5, 4172035), (7, 2980025), (25, 834407), (35, 596005), (175, 119201), (199, 104825), (599, 34825), (995, 20965), (1393, 14975), (2995, 6965), (4193, 4975)]