20788431768

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^2\times {\mathrm{643}}^1\times {\mathrm{2657}}^1$

素因数の和:3338

約数の個数: 144

約数和(自身を含む): 61083870120

約数和(自身を除く): 40295438352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 169, 234, 312, 338, 468, 507, 643, 676, 936, 1014, 1286, 1352, 1521, 1929, 2028, 2572, 2657, 3042, 3858, 4056, 5144, 5314, 5787, 6084, 7716, 7971, 8359, 10628, 11574, 12168, 15432, 15942, 16718, 21256, 23148, 23913, 25077, 31884, 33436, 34541, 46296, 47826, 50154, 63768, 66872, 69082, 75231, 95652, 100308, 103623, 108667, 138164, 150462, 191304, 200616, 207246, 217334, 276328, 300924, 310869, 326001, 414492, 434668, 449033, 601848, 621738, 652002, 828984, 869336, 898066, 978003, 1243476, 1304004, 1347099, 1708451, 1796132, 1956006, 2486952, 2608008, 2694198, 3416902, 3592264, 3912012, 4041297, 5125353, 5388396, 6833804, 7824024, 8082594, 10250706, 10776792, 13667608, 15376059, 16165188, 20501412, 22209863, 30752118, 32330376, 41002824, 44419726, 61504236, 66629589, 88839452, 123008472, 133259178, 177678904, 199888767, 266518356, 288728219, 399777534, 533036712, 577456438, 799555068, 866184657, 1154912876, 1599110136, 1732369314, 2309825752, 2598553971, 3464738628, 5197107942, 6929477256, 10394215884, 20788431768]

約数ペア:

[(1, 20788431768), (2, 10394215884), (3, 6929477256), (4, 5197107942), (6, 3464738628), (8, 2598553971), (9, 2309825752), (12, 1732369314), (13, 1599110136), (18, 1154912876), (24, 866184657), (26, 799555068), (36, 577456438), (39, 533036712), (52, 399777534), (72, 288728219), (78, 266518356), (104, 199888767), (117, 177678904), (156, 133259178), (169, 123008472), (234, 88839452), (312, 66629589), (338, 61504236), (468, 44419726), (507, 41002824), (643, 32330376), (676, 30752118), (936, 22209863), (1014, 20501412), (1286, 16165188), (1352, 15376059), (1521, 13667608), (1929, 10776792), (2028, 10250706), (2572, 8082594), (2657, 7824024), (3042, 6833804), (3858, 5388396), (4056, 5125353), (5144, 4041297), (5314, 3912012), (5787, 3592264), (6084, 3416902), (7716, 2694198), (7971, 2608008), (8359, 2486952), (10628, 1956006), (11574, 1796132), (12168, 1708451), (15432, 1347099), (15942, 1304004), (16718, 1243476), (21256, 978003), (23148, 898066), (23913, 869336), (25077, 828984), (31884, 652002), (33436, 621738), (34541, 601848), (46296, 449033), (47826, 434668), (50154, 414492), (63768, 326001), (66872, 310869), (69082, 300924), (75231, 276328), (95652, 217334), (100308, 207246), (103623, 200616), (108667, 191304), (138164, 150462)]