28647440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:480

約数の個数: 80

約数和(自身を含む): 71781120

約数和(自身を除く): 43133680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 188, 190, 235, 304, 376, 380, 401, 470, 752, 760, 802, 893, 940, 1520, 1604, 1786, 1880, 2005, 3208, 3572, 3760, 4010, 4465, 6416, 7144, 7619, 8020, 8930, 14288, 15238, 16040, 17860, 18847, 30476, 32080, 35720, 37694, 38095, 60952, 71440, 75388, 76190, 94235, 121904, 150776, 152380, 188470, 301552, 304760, 358093, 376940, 609520, 716186, 753880, 1432372, 1507760, 1790465, 2864744, 3580930, 5729488, 7161860, 14323720, 28647440]

約数ペア:

[(1, 28647440), (2, 14323720), (4, 7161860), (5, 5729488), (8, 3580930), (10, 2864744), (16, 1790465), (19, 1507760), (20, 1432372), (38, 753880), (40, 716186), (47, 609520), (76, 376940), (80, 358093), (94, 304760), (95, 301552), (152, 188470), (188, 152380), (190, 150776), (235, 121904), (304, 94235), (376, 76190), (380, 75388), (401, 71440), (470, 60952), (752, 38095), (760, 37694), (802, 35720), (893, 32080), (940, 30476), (1520, 18847), (1604, 17860), (1786, 16040), (1880, 15238), (2005, 14288), (3208, 8930), (3572, 8020), (3760, 7619), (4010, 7144), (4465, 6416)]