28545426

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 80693760

約数和(自身を除く): 52148334

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 37, 39, 42, 54, 63, 74, 78, 91, 111, 117, 126, 157, 182, 189, 222, 234, 259, 273, 314, 333, 351, 378, 471, 481, 518, 546, 666, 702, 777, 819, 942, 962, 999, 1099, 1413, 1443, 1554, 1638, 1998, 2041, 2198, 2331, 2457, 2826, 2886, 3297, 3367, 4082, 4239, 4329, 4662, 4914, 5809, 6123, 6594, 6734, 6993, 8478, 8658, 9891, 10101, 11618, 12246, 12987, 13986, 14287, 17427, 18369, 19782, 20202, 25974, 28574, 29673, 30303, 34854, 36738, 40663, 42861, 52281, 55107, 59346, 60606, 75517, 81326, 85722, 90909, 104562, 110214, 121989, 128583, 151034, 156843, 181818, 226551, 243978, 257166, 313686, 365967, 385749, 453102, 528619, 679653, 731934, 771498, 1057238, 1097901, 1359306, 1585857, 2038959, 2195802, 3171714, 4077918, 4757571, 9515142, 14272713, 28545426]

約数ペア:

[(1, 28545426), (2, 14272713), (3, 9515142), (6, 4757571), (7, 4077918), (9, 3171714), (13, 2195802), (14, 2038959), (18, 1585857), (21, 1359306), (26, 1097901), (27, 1057238), (37, 771498), (39, 731934), (42, 679653), (54, 528619), (63, 453102), (74, 385749), (78, 365967), (91, 313686), (111, 257166), (117, 243978), (126, 226551), (157, 181818), (182, 156843), (189, 151034), (222, 128583), (234, 121989), (259, 110214), (273, 104562), (314, 90909), (333, 85722), (351, 81326), (378, 75517), (471, 60606), (481, 59346), (518, 55107), (546, 52281), (666, 42861), (702, 40663), (777, 36738), (819, 34854), (942, 30303), (962, 29673), (999, 28574), (1099, 25974), (1413, 20202), (1443, 19782), (1554, 18369), (1638, 17427), (1998, 14287), (2041, 13986), (2198, 12987), (2331, 12246), (2457, 11618), (2826, 10101), (2886, 9891), (3297, 8658), (3367, 8478), (4082, 6993), (4239, 6734), (4329, 6594), (4662, 6123), (4914, 5809)]