20176904944

素因数分解:

$2^4\times 7^1\times {\mathrm{2671}}^1\times {\mathrm{67447}}^1$

素因数の和:70133

約数の個数: 40

約数和(自身を含む): 44694821888

約数和(自身を除く): 24517916944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2671, 5342, 10684, 18697, 21368, 37394, 42736, 67447, 74788, 134894, 149576, 269788, 299152, 472129, 539576, 944258, 1079152, 1888516, 3777032, 7554064, 180150937, 360301874, 720603748, 1261056559, 1441207496, 2522113118, 2882414992, 5044226236, 10088452472, 20176904944]

約数ペア:

[(1, 20176904944), (2, 10088452472), (4, 5044226236), (7, 2882414992), (8, 2522113118), (14, 1441207496), (16, 1261056559), (28, 720603748), (56, 360301874), (112, 180150937), (2671, 7554064), (5342, 3777032), (10684, 1888516), (18697, 1079152), (21368, 944258), (37394, 539576), (42736, 472129), (67447, 299152), (74788, 269788), (134894, 149576)]