20680352

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^2\times {\mathrm{109}}^1$

素因数の和:155

約数の個数: 108

約数和(自身を含む): 52536330

約数和(自身を除く): 31855978

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 109, 112, 121, 154, 176, 196, 218, 224, 242, 308, 352, 392, 436, 484, 539, 616, 763, 784, 847, 872, 968, 1078, 1199, 1232, 1526, 1568, 1694, 1744, 1936, 2156, 2398, 2464, 3052, 3388, 3488, 3872, 4312, 4796, 5341, 5929, 6104, 6776, 8393, 8624, 9592, 10682, 11858, 12208, 13189, 13552, 16786, 17248, 19184, 21364, 23716, 24416, 26378, 27104, 33572, 38368, 42728, 47432, 52756, 58751, 67144, 85456, 92323, 94864, 105512, 117502, 134288, 170912, 184646, 189728, 211024, 235004, 268576, 369292, 422048, 470008, 646261, 738584, 940016, 1292522, 1477168, 1880032, 2585044, 2954336, 5170088, 10340176, 20680352]

約数ペア:

[(1, 20680352), (2, 10340176), (4, 5170088), (7, 2954336), (8, 2585044), (11, 1880032), (14, 1477168), (16, 1292522), (22, 940016), (28, 738584), (32, 646261), (44, 470008), (49, 422048), (56, 369292), (77, 268576), (88, 235004), (98, 211024), (109, 189728), (112, 184646), (121, 170912), (154, 134288), (176, 117502), (196, 105512), (218, 94864), (224, 92323), (242, 85456), (308, 67144), (352, 58751), (392, 52756), (436, 47432), (484, 42728), (539, 38368), (616, 33572), (763, 27104), (784, 26378), (847, 24416), (872, 23716), (968, 21364), (1078, 19184), (1199, 17248), (1232, 16786), (1526, 13552), (1568, 13189), (1694, 12208), (1744, 11858), (1936, 10682), (2156, 9592), (2398, 8624), (2464, 8393), (3052, 6776), (3388, 6104), (3488, 5929), (3872, 5341), (4312, 4796)]