19497840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{593}}^1$

素因数の和:746

約数の個数: 80

約数和(自身を含む): 60987168

約数和(自身を除く): 41489328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 137, 240, 274, 411, 548, 593, 685, 822, 1096, 1186, 1370, 1644, 1779, 2055, 2192, 2372, 2740, 2965, 3288, 3558, 4110, 4744, 5480, 5930, 6576, 7116, 8220, 8895, 9488, 10960, 11860, 14232, 16440, 17790, 23720, 28464, 32880, 35580, 47440, 71160, 81241, 142320, 162482, 243723, 324964, 406205, 487446, 649928, 812410, 974892, 1218615, 1299856, 1624820, 1949784, 2437230, 3249640, 3899568, 4874460, 6499280, 9748920, 19497840]

約数ペア:

[(1, 19497840), (2, 9748920), (3, 6499280), (4, 4874460), (5, 3899568), (6, 3249640), (8, 2437230), (10, 1949784), (12, 1624820), (15, 1299856), (16, 1218615), (20, 974892), (24, 812410), (30, 649928), (40, 487446), (48, 406205), (60, 324964), (80, 243723), (120, 162482), (137, 142320), (240, 81241), (274, 71160), (411, 47440), (548, 35580), (593, 32880), (685, 28464), (822, 23720), (1096, 17790), (1186, 16440), (1370, 14232), (1644, 11860), (1779, 10960), (2055, 9488), (2192, 8895), (2372, 8220), (2740, 7116), (2965, 6576), (3288, 5930), (3558, 5480), (4110, 4744)]