20580285

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:99

約数の個数: 96

約数和(自身を含む): 41368320

約数和(自身を除く): 20788035

約数列:

[1, 3, 5, 11, 15, 17, 23, 29, 33, 51, 55, 69, 85, 87, 115, 121, 145, 165, 187, 253, 255, 319, 345, 363, 391, 435, 493, 561, 605, 667, 759, 935, 957, 1173, 1265, 1479, 1595, 1815, 1955, 2001, 2057, 2465, 2783, 2805, 3335, 3509, 3795, 4301, 4785, 5423, 5865, 6171, 7337, 7395, 8349, 10005, 10285, 10527, 11339, 12903, 13915, 16269, 17545, 21505, 22011, 27115, 30855, 34017, 36685, 41745, 47311, 52635, 56695, 59653, 64515, 80707, 81345, 110055, 124729, 141933, 170085, 178959, 236555, 242121, 298265, 374187, 403535, 623645, 709665, 894795, 1210605, 1372019, 1870935, 4116057, 6860095, 20580285]

約数ペア:

[(1, 20580285), (3, 6860095), (5, 4116057), (11, 1870935), (15, 1372019), (17, 1210605), (23, 894795), (29, 709665), (33, 623645), (51, 403535), (55, 374187), (69, 298265), (85, 242121), (87, 236555), (115, 178959), (121, 170085), (145, 141933), (165, 124729), (187, 110055), (253, 81345), (255, 80707), (319, 64515), (345, 59653), (363, 56695), (391, 52635), (435, 47311), (493, 41745), (561, 36685), (605, 34017), (667, 30855), (759, 27115), (935, 22011), (957, 21505), (1173, 17545), (1265, 16269), (1479, 13915), (1595, 12903), (1815, 11339), (1955, 10527), (2001, 10285), (2057, 10005), (2465, 8349), (2783, 7395), (2805, 7337), (3335, 6171), (3509, 5865), (3795, 5423), (4301, 4785)]