20686600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9403}}^1$

素因数の和:9430

約数の個数: 48

約数和(自身を含む): 52474320

約数和(自身を除く): 31787720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9403, 18806, 37612, 47015, 75224, 94030, 103433, 188060, 206866, 235075, 376120, 413732, 470150, 517165, 827464, 940300, 1034330, 1880600, 2068660, 2585825, 4137320, 5171650, 10343300, 20686600]

約数ペア:

[(1, 20686600), (2, 10343300), (4, 5171650), (5, 4137320), (8, 2585825), (10, 2068660), (11, 1880600), (20, 1034330), (22, 940300), (25, 827464), (40, 517165), (44, 470150), (50, 413732), (55, 376120), (88, 235075), (100, 206866), (110, 188060), (200, 103433), (220, 94030), (275, 75224), (440, 47015), (550, 37612), (1100, 18806), (2200, 9403)]