28474600

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 84503520

約数和(自身を除く): 56028920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 43, 44, 50, 55, 56, 70, 77, 86, 88, 100, 110, 140, 154, 172, 175, 200, 215, 220, 275, 280, 301, 308, 344, 350, 385, 430, 440, 473, 550, 602, 616, 700, 770, 860, 946, 1075, 1100, 1204, 1400, 1505, 1540, 1720, 1849, 1892, 1925, 2150, 2200, 2365, 2408, 3010, 3080, 3311, 3698, 3784, 3850, 4300, 4730, 6020, 6622, 7396, 7525, 7700, 8600, 9245, 9460, 11825, 12040, 12943, 13244, 14792, 15050, 15400, 16555, 18490, 18920, 20339, 23650, 25886, 26488, 30100, 33110, 36980, 40678, 46225, 47300, 51772, 60200, 64715, 66220, 73960, 81356, 82775, 92450, 94600, 101695, 103544, 129430, 132440, 142373, 162712, 165550, 184900, 203390, 258860, 284746, 323575, 331100, 369800, 406780, 508475, 517720, 569492, 647150, 662200, 711865, 813560, 1016950, 1138984, 1294300, 1423730, 2033900, 2588600, 2847460, 3559325, 4067800, 5694920, 7118650, 14237300, 28474600]

約数ペア:

[(1, 28474600), (2, 14237300), (4, 7118650), (5, 5694920), (7, 4067800), (8, 3559325), (10, 2847460), (11, 2588600), (14, 2033900), (20, 1423730), (22, 1294300), (25, 1138984), (28, 1016950), (35, 813560), (40, 711865), (43, 662200), (44, 647150), (50, 569492), (55, 517720), (56, 508475), (70, 406780), (77, 369800), (86, 331100), (88, 323575), (100, 284746), (110, 258860), (140, 203390), (154, 184900), (172, 165550), (175, 162712), (200, 142373), (215, 132440), (220, 129430), (275, 103544), (280, 101695), (301, 94600), (308, 92450), (344, 82775), (350, 81356), (385, 73960), (430, 66220), (440, 64715), (473, 60200), (550, 51772), (602, 47300), (616, 46225), (700, 40678), (770, 36980), (860, 33110), (946, 30100), (1075, 26488), (1100, 25886), (1204, 23650), (1400, 20339), (1505, 18920), (1540, 18490), (1720, 16555), (1849, 15400), (1892, 15050), (1925, 14792), (2150, 13244), (2200, 12943), (2365, 12040), (2408, 11825), (3010, 9460), (3080, 9245), (3311, 8600), (3698, 7700), (3784, 7525), (3850, 7396), (4300, 6622), (4730, 6020)]