1555554

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 96

約数和(自身を含む): 4366656

約数和(自身を除く): 2811102

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 37, 39, 42, 49, 66, 74, 77, 78, 91, 98, 111, 143, 147, 154, 182, 222, 231, 259, 273, 286, 294, 407, 429, 462, 481, 518, 539, 546, 637, 777, 814, 858, 962, 1001, 1078, 1221, 1274, 1443, 1554, 1617, 1813, 1911, 2002, 2442, 2849, 2886, 3003, 3234, 3367, 3626, 3822, 5291, 5439, 5698, 6006, 6734, 7007, 8547, 10101, 10582, 10878, 14014, 15873, 17094, 19943, 20202, 21021, 23569, 31746, 37037, 39886, 42042, 47138, 59829, 70707, 74074, 111111, 119658, 141414, 222222, 259259, 518518, 777777, 1555554]

約数ペア:

[(1, 1555554), (2, 777777), (3, 518518), (6, 259259), (7, 222222), (11, 141414), (13, 119658), (14, 111111), (21, 74074), (22, 70707), (26, 59829), (33, 47138), (37, 42042), (39, 39886), (42, 37037), (49, 31746), (66, 23569), (74, 21021), (77, 20202), (78, 19943), (91, 17094), (98, 15873), (111, 14014), (143, 10878), (147, 10582), (154, 10101), (182, 8547), (222, 7007), (231, 6734), (259, 6006), (273, 5698), (286, 5439), (294, 5291), (407, 3822), (429, 3626), (462, 3367), (481, 3234), (518, 3003), (539, 2886), (546, 2849), (637, 2442), (777, 2002), (814, 1911), (858, 1813), (962, 1617), (1001, 1554), (1078, 1443), (1221, 1274)]