20008912

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 49104000

約数和(自身を除く): 29095088

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 109, 112, 149, 154, 176, 218, 298, 308, 436, 596, 616, 763, 872, 1043, 1192, 1199, 1232, 1526, 1639, 1744, 2086, 2384, 2398, 3052, 3278, 4172, 4796, 6104, 6556, 8344, 8393, 9592, 11473, 12208, 13112, 16241, 16688, 16786, 19184, 22946, 26224, 32482, 33572, 45892, 64964, 67144, 91784, 113687, 129928, 134288, 178651, 183568, 227374, 259856, 357302, 454748, 714604, 909496, 1250557, 1429208, 1818992, 2501114, 2858416, 5002228, 10004456, 20008912]

約数ペア:

[(1, 20008912), (2, 10004456), (4, 5002228), (7, 2858416), (8, 2501114), (11, 1818992), (14, 1429208), (16, 1250557), (22, 909496), (28, 714604), (44, 454748), (56, 357302), (77, 259856), (88, 227374), (109, 183568), (112, 178651), (149, 134288), (154, 129928), (176, 113687), (218, 91784), (298, 67144), (308, 64964), (436, 45892), (596, 33572), (616, 32482), (763, 26224), (872, 22946), (1043, 19184), (1192, 16786), (1199, 16688), (1232, 16241), (1526, 13112), (1639, 12208), (1744, 11473), (2086, 9592), (2384, 8393), (2398, 8344), (3052, 6556), (3278, 6104), (4172, 4796)]