28520800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{463}}^1$

素因数の和:501

約数の個数: 144

約数和(自身を含む): 86994432

約数和(自身を除く): 58473632

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 140, 154, 160, 175, 176, 200, 220, 224, 275, 280, 308, 350, 352, 385, 400, 440, 463, 550, 560, 616, 700, 770, 800, 880, 926, 1100, 1120, 1232, 1400, 1540, 1760, 1852, 1925, 2200, 2315, 2464, 2800, 3080, 3241, 3704, 3850, 4400, 4630, 5093, 5600, 6160, 6482, 7408, 7700, 8800, 9260, 10186, 11575, 12320, 12964, 14816, 15400, 16205, 18520, 20372, 23150, 25465, 25928, 30800, 32410, 35651, 37040, 40744, 46300, 50930, 51856, 61600, 64820, 71302, 74080, 81025, 81488, 92600, 101860, 103712, 127325, 129640, 142604, 162050, 162976, 178255, 185200, 203720, 254650, 259280, 285208, 324100, 356510, 370400, 407440, 509300, 518560, 570416, 648200, 713020, 814880, 891275, 1018600, 1140832, 1296400, 1426040, 1782550, 2037200, 2592800, 2852080, 3565100, 4074400, 5704160, 7130200, 14260400, 28520800]

約数ペア:

[(1, 28520800), (2, 14260400), (4, 7130200), (5, 5704160), (7, 4074400), (8, 3565100), (10, 2852080), (11, 2592800), (14, 2037200), (16, 1782550), (20, 1426040), (22, 1296400), (25, 1140832), (28, 1018600), (32, 891275), (35, 814880), (40, 713020), (44, 648200), (50, 570416), (55, 518560), (56, 509300), (70, 407440), (77, 370400), (80, 356510), (88, 324100), (100, 285208), (110, 259280), (112, 254650), (140, 203720), (154, 185200), (160, 178255), (175, 162976), (176, 162050), (200, 142604), (220, 129640), (224, 127325), (275, 103712), (280, 101860), (308, 92600), (350, 81488), (352, 81025), (385, 74080), (400, 71302), (440, 64820), (463, 61600), (550, 51856), (560, 50930), (616, 46300), (700, 40744), (770, 37040), (800, 35651), (880, 32410), (926, 30800), (1100, 25928), (1120, 25465), (1232, 23150), (1400, 20372), (1540, 18520), (1760, 16205), (1852, 15400), (1925, 14816), (2200, 12964), (2315, 12320), (2464, 11575), (2800, 10186), (3080, 9260), (3241, 8800), (3704, 7700), (3850, 7408), (4400, 6482), (4630, 6160), (5093, 5600)]