20640924

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1163}}^1$

素因数の和:1219

約数の個数: 72

約数和(自身を含む): 57198960

約数和(自身を除く): 36558036

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 29, 34, 36, 51, 58, 68, 87, 102, 116, 153, 174, 204, 261, 306, 348, 493, 522, 612, 986, 1044, 1163, 1479, 1972, 2326, 2958, 3489, 4437, 4652, 5916, 6978, 8874, 10467, 13956, 17748, 19771, 20934, 33727, 39542, 41868, 59313, 67454, 79084, 101181, 118626, 134908, 177939, 202362, 237252, 303543, 355878, 404724, 573359, 607086, 711756, 1146718, 1214172, 1720077, 2293436, 3440154, 5160231, 6880308, 10320462, 20640924]

約数ペア:

[(1, 20640924), (2, 10320462), (3, 6880308), (4, 5160231), (6, 3440154), (9, 2293436), (12, 1720077), (17, 1214172), (18, 1146718), (29, 711756), (34, 607086), (36, 573359), (51, 404724), (58, 355878), (68, 303543), (87, 237252), (102, 202362), (116, 177939), (153, 134908), (174, 118626), (204, 101181), (261, 79084), (306, 67454), (348, 59313), (493, 41868), (522, 39542), (612, 33727), (986, 20934), (1044, 19771), (1163, 17748), (1479, 13956), (1972, 10467), (2326, 8874), (2958, 6978), (3489, 5916), (4437, 4652)]