20409180

素因数分解:

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

素因数の和:164

約数の個数: 144

約数和(自身を含む): 66842496

約数和(自身を除く): 46433316

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 107, 110, 132, 165, 170, 187, 204, 214, 220, 255, 289, 321, 330, 340, 374, 428, 510, 535, 561, 578, 642, 660, 748, 867, 935, 1020, 1070, 1122, 1156, 1177, 1284, 1445, 1605, 1734, 1819, 1870, 2140, 2244, 2354, 2805, 2890, 3179, 3210, 3468, 3531, 3638, 3740, 4335, 4708, 5457, 5610, 5780, 5885, 6358, 6420, 7062, 7276, 8670, 9095, 9537, 10914, 11220, 11770, 12716, 14124, 15895, 17340, 17655, 18190, 19074, 20009, 21828, 23540, 27285, 30923, 31790, 35310, 36380, 38148, 40018, 47685, 54570, 60027, 61846, 63580, 70620, 80036, 92769, 95370, 100045, 109140, 120054, 123692, 154615, 185538, 190740, 200090, 240108, 300135, 309230, 340153, 371076, 400180, 463845, 600270, 618460, 680306, 927690, 1020459, 1200540, 1360612, 1700765, 1855380, 2040918, 3401530, 4081836, 5102295, 6803060, 10204590, 20409180]

約数ペア:

[(1, 20409180), (2, 10204590), (3, 6803060), (4, 5102295), (5, 4081836), (6, 3401530), (10, 2040918), (11, 1855380), (12, 1700765), (15, 1360612), (17, 1200540), (20, 1020459), (22, 927690), (30, 680306), (33, 618460), (34, 600270), (44, 463845), (51, 400180), (55, 371076), (60, 340153), (66, 309230), (68, 300135), (85, 240108), (102, 200090), (107, 190740), (110, 185538), (132, 154615), (165, 123692), (170, 120054), (187, 109140), (204, 100045), (214, 95370), (220, 92769), (255, 80036), (289, 70620), (321, 63580), (330, 61846), (340, 60027), (374, 54570), (428, 47685), (510, 40018), (535, 38148), (561, 36380), (578, 35310), (642, 31790), (660, 30923), (748, 27285), (867, 23540), (935, 21828), (1020, 20009), (1070, 19074), (1122, 18190), (1156, 17655), (1177, 17340), (1284, 15895), (1445, 14124), (1605, 12716), (1734, 11770), (1819, 11220), (1870, 10914), (2140, 9537), (2244, 9095), (2354, 8670), (2805, 7276), (2890, 7062), (3179, 6420), (3210, 6358), (3468, 5885), (3531, 5780), (3638, 5610), (3740, 5457), (4335, 4708)]