18837280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1$

素因数の和:183

約数の個数: 144

約数和(自身を含む): 56306880

約数和(自身を除く): 37469600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 139, 140, 154, 160, 176, 220, 224, 242, 278, 280, 308, 352, 385, 440, 484, 556, 560, 605, 616, 695, 770, 847, 880, 968, 973, 1112, 1120, 1210, 1232, 1390, 1529, 1540, 1694, 1760, 1936, 1946, 2224, 2420, 2464, 2780, 3058, 3080, 3388, 3872, 3892, 4235, 4448, 4840, 4865, 5560, 6116, 6160, 6776, 7645, 7784, 8470, 9680, 9730, 10703, 11120, 12232, 12320, 13552, 15290, 15568, 16819, 16940, 19360, 19460, 21406, 22240, 24464, 27104, 30580, 31136, 33638, 33880, 38920, 42812, 48928, 53515, 61160, 67276, 67760, 77840, 84095, 85624, 107030, 117733, 122320, 134552, 135520, 155680, 168190, 171248, 214060, 235466, 244640, 269104, 336380, 342496, 428120, 470932, 538208, 588665, 672760, 856240, 941864, 1177330, 1345520, 1712480, 1883728, 2354660, 2691040, 3767456, 4709320, 9418640, 18837280]

約数ペア:

[(1, 18837280), (2, 9418640), (4, 4709320), (5, 3767456), (7, 2691040), (8, 2354660), (10, 1883728), (11, 1712480), (14, 1345520), (16, 1177330), (20, 941864), (22, 856240), (28, 672760), (32, 588665), (35, 538208), (40, 470932), (44, 428120), (55, 342496), (56, 336380), (70, 269104), (77, 244640), (80, 235466), (88, 214060), (110, 171248), (112, 168190), (121, 155680), (139, 135520), (140, 134552), (154, 122320), (160, 117733), (176, 107030), (220, 85624), (224, 84095), (242, 77840), (278, 67760), (280, 67276), (308, 61160), (352, 53515), (385, 48928), (440, 42812), (484, 38920), (556, 33880), (560, 33638), (605, 31136), (616, 30580), (695, 27104), (770, 24464), (847, 22240), (880, 21406), (968, 19460), (973, 19360), (1112, 16940), (1120, 16819), (1210, 15568), (1232, 15290), (1390, 13552), (1529, 12320), (1540, 12232), (1694, 11120), (1760, 10703), (1936, 9730), (1946, 9680), (2224, 8470), (2420, 7784), (2464, 7645), (2780, 6776), (3058, 6160), (3080, 6116), (3388, 5560), (3872, 4865), (3892, 4840), (4235, 4448)]