20766677412

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{499}}^1\times {\mathrm{20521}}^1$

素因数の和:21053

約数の個数: 72

約数和(自身を含む): 52577364000

約数和(自身を除く): 31810686588

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 499, 507, 676, 998, 1014, 1497, 1996, 2028, 2994, 5988, 6487, 12974, 19461, 20521, 25948, 38922, 41042, 61563, 77844, 82084, 84331, 123126, 168662, 246252, 252993, 266773, 337324, 505986, 533546, 800319, 1011972, 1067092, 1600638, 3201276, 3468049, 6936098, 10239979, 10404147, 13872196, 20479958, 20808294, 30719937, 40959916, 41616588, 61439874, 122879748, 133119727, 266239454, 399359181, 532478908, 798718362, 1597436724, 1730556451, 3461112902, 5191669353, 6922225804, 10383338706, 20766677412]

約数ペア:

[(1, 20766677412), (2, 10383338706), (3, 6922225804), (4, 5191669353), (6, 3461112902), (12, 1730556451), (13, 1597436724), (26, 798718362), (39, 532478908), (52, 399359181), (78, 266239454), (156, 133119727), (169, 122879748), (338, 61439874), (499, 41616588), (507, 40959916), (676, 30719937), (998, 20808294), (1014, 20479958), (1497, 13872196), (1996, 10404147), (2028, 10239979), (2994, 6936098), (5988, 3468049), (6487, 3201276), (12974, 1600638), (19461, 1067092), (20521, 1011972), (25948, 800319), (38922, 533546), (41042, 505986), (61563, 337324), (77844, 266773), (82084, 252993), (84331, 246252), (123126, 168662)]