20561464

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1151}}^1$

素因数の和:1204

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 29204936

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 88, 116, 154, 203, 232, 308, 319, 406, 616, 638, 812, 1151, 1276, 1624, 2233, 2302, 2552, 4466, 4604, 8057, 8932, 9208, 12661, 16114, 17864, 25322, 32228, 33379, 50644, 64456, 66758, 88627, 101288, 133516, 177254, 233653, 267032, 354508, 367169, 467306, 709016, 734338, 934612, 1468676, 1869224, 2570183, 2937352, 5140366, 10280732, 20561464]

約数ペア:

[(1, 20561464), (2, 10280732), (4, 5140366), (7, 2937352), (8, 2570183), (11, 1869224), (14, 1468676), (22, 934612), (28, 734338), (29, 709016), (44, 467306), (56, 367169), (58, 354508), (77, 267032), (88, 233653), (116, 177254), (154, 133516), (203, 101288), (232, 88627), (308, 66758), (319, 64456), (406, 50644), (616, 33379), (638, 32228), (812, 25322), (1151, 17864), (1276, 16114), (1624, 12661), (2233, 9208), (2302, 8932), (2552, 8057), (4466, 4604)]