280006713

素因数分解:

$3^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1483}}^1$

素因数の和:1545

約数の個数: 56

約数和(自身を含む): 493091648

約数和(自身を除く): 213084935

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 243, 259, 333, 567, 729, 777, 999, 1483, 1701, 2331, 2997, 4449, 5103, 6993, 8991, 10381, 13347, 20979, 26973, 31143, 40041, 54871, 62937, 93429, 120123, 164613, 188811, 280287, 360369, 384097, 493839, 840861, 1081107, 1152291, 1481517, 2522583, 3456873, 4444551, 7567749, 10370619, 13333653, 31111857, 40000959, 93335571, 280006713]

約数ペア:

[(1, 280006713), (3, 93335571), (7, 40000959), (9, 31111857), (21, 13333653), (27, 10370619), (37, 7567749), (63, 4444551), (81, 3456873), (111, 2522583), (189, 1481517), (243, 1152291), (259, 1081107), (333, 840861), (567, 493839), (729, 384097), (777, 360369), (999, 280287), (1483, 188811), (1701, 164613), (2331, 120123), (2997, 93429), (4449, 62937), (5103, 54871), (6993, 40041), (8991, 31143), (10381, 26973), (13347, 20979)]