28240740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{839}}^1$

素因数の和:882

約数の個数: 144

約数和(自身を含む): 99066240

約数和(自身を除く): 70825500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 44, 45, 51, 55, 60, 66, 68, 85, 90, 99, 102, 110, 132, 153, 165, 170, 180, 187, 198, 204, 220, 255, 306, 330, 340, 374, 396, 495, 510, 561, 612, 660, 748, 765, 839, 935, 990, 1020, 1122, 1530, 1678, 1683, 1870, 1980, 2244, 2517, 2805, 3060, 3356, 3366, 3740, 4195, 5034, 5610, 6732, 7551, 8390, 8415, 9229, 10068, 11220, 12585, 14263, 15102, 16780, 16830, 18458, 25170, 27687, 28526, 30204, 33660, 36916, 37755, 42789, 46145, 50340, 55374, 57052, 71315, 75510, 83061, 85578, 92290, 110748, 128367, 138435, 142630, 151020, 156893, 166122, 171156, 184580, 213945, 256734, 276870, 285260, 313786, 332244, 415305, 427890, 470679, 513468, 553740, 627572, 641835, 784465, 830610, 855780, 941358, 1283670, 1412037, 1568930, 1661220, 1882716, 2353395, 2567340, 2824074, 3137860, 4706790, 5648148, 7060185, 9413580, 14120370, 28240740]

約数ペア:

[(1, 28240740), (2, 14120370), (3, 9413580), (4, 7060185), (5, 5648148), (6, 4706790), (9, 3137860), (10, 2824074), (11, 2567340), (12, 2353395), (15, 1882716), (17, 1661220), (18, 1568930), (20, 1412037), (22, 1283670), (30, 941358), (33, 855780), (34, 830610), (36, 784465), (44, 641835), (45, 627572), (51, 553740), (55, 513468), (60, 470679), (66, 427890), (68, 415305), (85, 332244), (90, 313786), (99, 285260), (102, 276870), (110, 256734), (132, 213945), (153, 184580), (165, 171156), (170, 166122), (180, 156893), (187, 151020), (198, 142630), (204, 138435), (220, 128367), (255, 110748), (306, 92290), (330, 85578), (340, 83061), (374, 75510), (396, 71315), (495, 57052), (510, 55374), (561, 50340), (612, 46145), (660, 42789), (748, 37755), (765, 36916), (839, 33660), (935, 30204), (990, 28526), (1020, 27687), (1122, 25170), (1530, 18458), (1678, 16830), (1683, 16780), (1870, 15102), (1980, 14263), (2244, 12585), (2517, 11220), (2805, 10068), (3060, 9229), (3356, 8415), (3366, 8390), (3740, 7551), (4195, 6732), (5034, 5610)]