18838600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8563}}^1$

素因数の和:8590

約数の個数: 48

約数和(自身を含む): 47787120

約数和(自身を除く): 28948520

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, 8563, 17126, 34252, 42815, 68504, 85630, 94193, 171260, 188386, 214075, 342520, 376772, 428150, 470965, 753544, 856300, 941930, 1712600, 1883860, 2354825, 3767720, 4709650, 9419300, 18838600]

約数ペア:

[(1, 18838600), (2, 9419300), (4, 4709650), (5, 3767720), (8, 2354825), (10, 1883860), (11, 1712600), (20, 941930), (22, 856300), (25, 753544), (40, 470965), (44, 428150), (50, 376772), (55, 342520), (88, 214075), (100, 188386), (110, 171260), (200, 94193), (220, 85630), (275, 68504), (440, 42815), (550, 34252), (1100, 17126), (2200, 8563)]