20278828801

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{1171}}^1$

素因数の和:1323

約数の個数: 72

約数和(自身を含む): 27488509920

約数和(自身を除く): 7209681119

約数列:

[1, 7, 11, 19, 49, 77, 89, 133, 209, 361, 539, 623, 931, 979, 1171, 1463, 1691, 2527, 3971, 4361, 6853, 8197, 10241, 11837, 12881, 17689, 18601, 22249, 27797, 32129, 47971, 57379, 82859, 90167, 104219, 130207, 155743, 194579, 224903, 244739, 353419, 422731, 631169, 729533, 911449, 1090201, 1146409, 1574321, 1713173, 1980161, 2473933, 2959117, 4650041, 5106731, 8024863, 11992211, 13861127, 17317531, 20713819, 21781771, 32550287, 37623059, 56174041, 97027889, 152472397, 227852009, 263361413, 413853649, 1067306779, 1843529891, 2896975543, 20278828801]

約数ペア:

[(1, 20278828801), (7, 2896975543), (11, 1843529891), (19, 1067306779), (49, 413853649), (77, 263361413), (89, 227852009), (133, 152472397), (209, 97027889), (361, 56174041), (539, 37623059), (623, 32550287), (931, 21781771), (979, 20713819), (1171, 17317531), (1463, 13861127), (1691, 11992211), (2527, 8024863), (3971, 5106731), (4361, 4650041), (6853, 2959117), (8197, 2473933), (10241, 1980161), (11837, 1713173), (12881, 1574321), (17689, 1146409), (18601, 1090201), (22249, 911449), (27797, 729533), (32129, 631169), (47971, 422731), (57379, 353419), (82859, 244739), (90167, 224903), (104219, 194579), (130207, 155743)]