20878800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:285

約数の個数: 120

約数和(自身を含む): 67900416

約数和(自身を除く): 47021616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 127, 137, 150, 200, 240, 254, 274, 300, 381, 400, 411, 508, 548, 600, 635, 685, 762, 822, 1016, 1096, 1200, 1270, 1370, 1524, 1644, 1905, 2032, 2055, 2192, 2540, 2740, 3048, 3175, 3288, 3425, 3810, 4110, 5080, 5480, 6096, 6350, 6576, 6850, 7620, 8220, 9525, 10160, 10275, 10960, 12700, 13700, 15240, 16440, 17399, 19050, 20550, 25400, 27400, 30480, 32880, 34798, 38100, 41100, 50800, 52197, 54800, 69596, 76200, 82200, 86995, 104394, 139192, 152400, 164400, 173990, 208788, 260985, 278384, 347980, 417576, 434975, 521970, 695960, 835152, 869950, 1043940, 1304925, 1391920, 1739900, 2087880, 2609850, 3479800, 4175760, 5219700, 6959600, 10439400, 20878800]

約数ペア:

[(1, 20878800), (2, 10439400), (3, 6959600), (4, 5219700), (5, 4175760), (6, 3479800), (8, 2609850), (10, 2087880), (12, 1739900), (15, 1391920), (16, 1304925), (20, 1043940), (24, 869950), (25, 835152), (30, 695960), (40, 521970), (48, 434975), (50, 417576), (60, 347980), (75, 278384), (80, 260985), (100, 208788), (120, 173990), (127, 164400), (137, 152400), (150, 139192), (200, 104394), (240, 86995), (254, 82200), (274, 76200), (300, 69596), (381, 54800), (400, 52197), (411, 50800), (508, 41100), (548, 38100), (600, 34798), (635, 32880), (685, 30480), (762, 27400), (822, 25400), (1016, 20550), (1096, 19050), (1200, 17399), (1270, 16440), (1370, 15240), (1524, 13700), (1644, 12700), (1905, 10960), (2032, 10275), (2055, 10160), (2192, 9525), (2540, 8220), (2740, 7620), (3048, 6850), (3175, 6576), (3288, 6350), (3425, 6096), (3810, 5480), (4110, 5080)]