28427700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13537}}^1$

素因数の和:13561

約数の個数: 72

約数和(自身を含む): 94007872

約数和(自身を除く): 65580172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 13537, 27074, 40611, 54148, 67685, 81222, 94759, 135370, 162444, 189518, 203055, 270740, 284277, 338425, 379036, 406110, 473795, 568554, 676850, 812220, 947590, 1015275, 1137108, 1353700, 1421385, 1895180, 2030550, 2368975, 2842770, 4061100, 4737950, 5685540, 7106925, 9475900, 14213850, 28427700]

約数ペア:

[(1, 28427700), (2, 14213850), (3, 9475900), (4, 7106925), (5, 5685540), (6, 4737950), (7, 4061100), (10, 2842770), (12, 2368975), (14, 2030550), (15, 1895180), (20, 1421385), (21, 1353700), (25, 1137108), (28, 1015275), (30, 947590), (35, 812220), (42, 676850), (50, 568554), (60, 473795), (70, 406110), (75, 379036), (84, 338425), (100, 284277), (105, 270740), (140, 203055), (150, 189518), (175, 162444), (210, 135370), (300, 94759), (350, 81222), (420, 67685), (525, 54148), (700, 40611), (1050, 27074), (2100, 13537)]