28498140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:452

約数の個数: 144

約数和(自身を含む): 97100640

約数和(自身を除く): 68602500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 37, 44, 45, 55, 60, 66, 74, 90, 99, 110, 111, 132, 148, 165, 180, 185, 198, 220, 222, 330, 333, 370, 389, 396, 407, 444, 495, 555, 660, 666, 740, 778, 814, 990, 1110, 1167, 1221, 1332, 1556, 1628, 1665, 1945, 1980, 2035, 2220, 2334, 2442, 3330, 3501, 3663, 3890, 4070, 4279, 4668, 4884, 5835, 6105, 6660, 7002, 7326, 7780, 8140, 8558, 11670, 12210, 12837, 14004, 14393, 14652, 17116, 17505, 18315, 21395, 23340, 24420, 25674, 28786, 35010, 36630, 38511, 42790, 43179, 51348, 57572, 64185, 70020, 71965, 73260, 77022, 85580, 86358, 128370, 129537, 143930, 154044, 158323, 172716, 192555, 215895, 256740, 259074, 287860, 316646, 385110, 431790, 474969, 518148, 633292, 647685, 770220, 791615, 863580, 949938, 1295370, 1424907, 1583230, 1899876, 2374845, 2590740, 2849814, 3166460, 4749690, 5699628, 7124535, 9499380, 14249070, 28498140]

約数ペア:

[(1, 28498140), (2, 14249070), (3, 9499380), (4, 7124535), (5, 5699628), (6, 4749690), (9, 3166460), (10, 2849814), (11, 2590740), (12, 2374845), (15, 1899876), (18, 1583230), (20, 1424907), (22, 1295370), (30, 949938), (33, 863580), (36, 791615), (37, 770220), (44, 647685), (45, 633292), (55, 518148), (60, 474969), (66, 431790), (74, 385110), (90, 316646), (99, 287860), (110, 259074), (111, 256740), (132, 215895), (148, 192555), (165, 172716), (180, 158323), (185, 154044), (198, 143930), (220, 129537), (222, 128370), (330, 86358), (333, 85580), (370, 77022), (389, 73260), (396, 71965), (407, 70020), (444, 64185), (495, 57572), (555, 51348), (660, 43179), (666, 42790), (740, 38511), (778, 36630), (814, 35010), (990, 28786), (1110, 25674), (1167, 24420), (1221, 23340), (1332, 21395), (1556, 18315), (1628, 17505), (1665, 17116), (1945, 14652), (1980, 14393), (2035, 14004), (2220, 12837), (2334, 12210), (2442, 11670), (3330, 8558), (3501, 8140), (3663, 7780), (3890, 7326), (4070, 7002), (4279, 6660), (4668, 6105), (4884, 5835)]