1280475812

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1\times {\mathrm{223}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 2849193984

約数和(自身を除く): 1568718172

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 103, 154, 181, 206, 223, 308, 362, 412, 446, 721, 724, 892, 1133, 1267, 1442, 1561, 1991, 2266, 2453, 2534, 2884, 3122, 3982, 4532, 4906, 5068, 6244, 7931, 7964, 9812, 13937, 15862, 17171, 18643, 22969, 27874, 31724, 34342, 37286, 40363, 45938, 55748, 68684, 74572, 80726, 91876, 130501, 160783, 161452, 205073, 252659, 261002, 282541, 321566, 410146, 443993, 505318, 522004, 565082, 643132, 820292, 887986, 1010636, 1130164, 1435511, 1768613, 1775972, 2871022, 3107951, 3537226, 4157389, 5742044, 6215902, 7074452, 8314778, 12431804, 16629556, 29101723, 45731279, 58203446, 91462558, 116406892, 182925116, 320118953, 640237906, 1280475812]

約数ペア:

[(1, 1280475812), (2, 640237906), (4, 320118953), (7, 182925116), (11, 116406892), (14, 91462558), (22, 58203446), (28, 45731279), (44, 29101723), (77, 16629556), (103, 12431804), (154, 8314778), (181, 7074452), (206, 6215902), (223, 5742044), (308, 4157389), (362, 3537226), (412, 3107951), (446, 2871022), (721, 1775972), (724, 1768613), (892, 1435511), (1133, 1130164), (1267, 1010636), (1442, 887986), (1561, 820292), (1991, 643132), (2266, 565082), (2453, 522004), (2534, 505318), (2884, 443993), (3122, 410146), (3982, 321566), (4532, 282541), (4906, 261002), (5068, 252659), (6244, 205073), (7931, 161452), (7964, 160783), (9812, 130501), (13937, 91876), (15862, 80726), (17171, 74572), (18643, 68684), (22969, 55748), (27874, 45938), (31724, 40363), (34342, 37286)]