19808910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 60501168

約数和(自身を除く): 40692258

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 17, 18, 22, 30, 33, 34, 45, 51, 55, 66, 85, 90, 99, 102, 107, 110, 121, 153, 165, 170, 187, 198, 214, 242, 255, 306, 321, 330, 363, 374, 495, 510, 535, 561, 605, 642, 726, 765, 935, 963, 990, 1070, 1089, 1122, 1177, 1210, 1530, 1605, 1683, 1815, 1819, 1870, 1926, 2057, 2178, 2354, 2805, 3210, 3366, 3531, 3630, 3638, 4114, 4815, 5445, 5457, 5610, 5885, 6171, 7062, 8415, 9095, 9630, 10285, 10593, 10890, 10914, 11770, 12342, 12947, 16371, 16830, 17655, 18190, 18513, 20009, 20570, 21186, 25894, 27285, 30855, 32742, 35310, 37026, 38841, 40018, 52965, 54570, 60027, 61710, 64735, 77682, 81855, 92565, 100045, 105930, 116523, 120054, 129470, 163710, 180081, 185130, 194205, 200090, 220099, 233046, 300135, 360162, 388410, 440198, 582615, 600270, 660297, 900405, 1100495, 1165230, 1320594, 1800810, 1980891, 2200990, 3301485, 3961782, 6602970, 9904455, 19808910]

約数ペア:

[(1, 19808910), (2, 9904455), (3, 6602970), (5, 3961782), (6, 3301485), (9, 2200990), (10, 1980891), (11, 1800810), (15, 1320594), (17, 1165230), (18, 1100495), (22, 900405), (30, 660297), (33, 600270), (34, 582615), (45, 440198), (51, 388410), (55, 360162), (66, 300135), (85, 233046), (90, 220099), (99, 200090), (102, 194205), (107, 185130), (110, 180081), (121, 163710), (153, 129470), (165, 120054), (170, 116523), (187, 105930), (198, 100045), (214, 92565), (242, 81855), (255, 77682), (306, 64735), (321, 61710), (330, 60027), (363, 54570), (374, 52965), (495, 40018), (510, 38841), (535, 37026), (561, 35310), (605, 32742), (642, 30855), (726, 27285), (765, 25894), (935, 21186), (963, 20570), (990, 20009), (1070, 18513), (1089, 18190), (1122, 17655), (1177, 16830), (1210, 16371), (1530, 12947), (1605, 12342), (1683, 11770), (1815, 10914), (1819, 10890), (1870, 10593), (1926, 10285), (2057, 9630), (2178, 9095), (2354, 8415), (2805, 7062), (3210, 6171), (3366, 5885), (3531, 5610), (3630, 5457), (3638, 5445), (4114, 4815)]