20789010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 41952942

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 23, 30, 33, 45, 46, 55, 66, 69, 83, 90, 99, 110, 115, 121, 138, 165, 166, 198, 207, 230, 242, 249, 253, 330, 345, 363, 414, 415, 495, 498, 506, 605, 690, 726, 747, 759, 830, 913, 990, 1035, 1089, 1210, 1245, 1265, 1494, 1518, 1815, 1826, 1909, 2070, 2178, 2277, 2490, 2530, 2739, 2783, 3630, 3735, 3795, 3818, 4554, 4565, 5445, 5478, 5566, 5727, 7470, 7590, 8217, 8349, 9130, 9545, 10043, 10890, 11385, 11454, 13695, 13915, 16434, 16698, 17181, 19090, 20086, 20999, 22770, 25047, 27390, 27830, 28635, 30129, 34362, 41085, 41745, 41998, 50094, 50215, 57270, 60258, 62997, 82170, 83490, 85905, 90387, 100430, 104995, 125235, 125994, 150645, 171810, 180774, 188991, 209990, 230989, 250470, 301290, 314985, 377982, 451935, 461978, 629970, 692967, 903870, 944955, 1154945, 1385934, 1889910, 2078901, 2309890, 3464835, 4157802, 6929670, 10394505, 20789010]

約数ペア:

[(1, 20789010), (2, 10394505), (3, 6929670), (5, 4157802), (6, 3464835), (9, 2309890), (10, 2078901), (11, 1889910), (15, 1385934), (18, 1154945), (22, 944955), (23, 903870), (30, 692967), (33, 629970), (45, 461978), (46, 451935), (55, 377982), (66, 314985), (69, 301290), (83, 250470), (90, 230989), (99, 209990), (110, 188991), (115, 180774), (121, 171810), (138, 150645), (165, 125994), (166, 125235), (198, 104995), (207, 100430), (230, 90387), (242, 85905), (249, 83490), (253, 82170), (330, 62997), (345, 60258), (363, 57270), (414, 50215), (415, 50094), (495, 41998), (498, 41745), (506, 41085), (605, 34362), (690, 30129), (726, 28635), (747, 27830), (759, 27390), (830, 25047), (913, 22770), (990, 20999), (1035, 20086), (1089, 19090), (1210, 17181), (1245, 16698), (1265, 16434), (1494, 13915), (1518, 13695), (1815, 11454), (1826, 11385), (1909, 10890), (2070, 10043), (2178, 9545), (2277, 9130), (2490, 8349), (2530, 8217), (2739, 7590), (2783, 7470), (3630, 5727), (3735, 5566), (3795, 5478), (3818, 5445), (4554, 4565)]