20200446

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{619}}^1$

素因数の和:678

約数の個数: 72

約数和(自身を含む): 52373880

約数和(自身を除く): 32173434

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 49, 63, 74, 98, 111, 126, 147, 222, 259, 294, 333, 441, 518, 619, 666, 777, 882, 1238, 1554, 1813, 1857, 2331, 3626, 3714, 4333, 4662, 5439, 5571, 8666, 10878, 11142, 12999, 16317, 22903, 25998, 30331, 32634, 38997, 45806, 60662, 68709, 77994, 90993, 137418, 160321, 181986, 206127, 272979, 320642, 412254, 480963, 545958, 961926, 1122247, 1442889, 2244494, 2885778, 3366741, 6733482, 10100223, 20200446]

約数ペア:

[(1, 20200446), (2, 10100223), (3, 6733482), (6, 3366741), (7, 2885778), (9, 2244494), (14, 1442889), (18, 1122247), (21, 961926), (37, 545958), (42, 480963), (49, 412254), (63, 320642), (74, 272979), (98, 206127), (111, 181986), (126, 160321), (147, 137418), (222, 90993), (259, 77994), (294, 68709), (333, 60662), (441, 45806), (518, 38997), (619, 32634), (666, 30331), (777, 25998), (882, 22903), (1238, 16317), (1554, 12999), (1813, 11142), (1857, 10878), (2331, 8666), (3626, 5571), (3714, 5439), (4333, 4662)]