20850225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 38092800

約数和(自身を除く): 17242575

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 127, 165, 199, 275, 381, 597, 635, 825, 995, 1397, 1905, 2189, 2985, 3175, 4191, 4975, 6567, 6985, 9525, 10945, 14925, 20955, 25273, 32835, 34925, 54725, 75819, 104775, 126365, 164175, 278003, 379095, 631825, 834009, 1390015, 1895475, 4170045, 6950075, 20850225]

約数ペア:

[(1, 20850225), (3, 6950075), (5, 4170045), (11, 1895475), (15, 1390015), (25, 834009), (33, 631825), (55, 379095), (75, 278003), (127, 164175), (165, 126365), (199, 104775), (275, 75819), (381, 54725), (597, 34925), (635, 32835), (825, 25273), (995, 20955), (1397, 14925), (1905, 10945), (2189, 9525), (2985, 6985), (3175, 6567), (4191, 4975)]