20099576

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 46759680

約数和(自身を除く): 26660104

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 43, 56, 68, 86, 119, 136, 172, 238, 301, 344, 476, 491, 602, 731, 952, 982, 1204, 1462, 1964, 2408, 2924, 3437, 3928, 5117, 5848, 6874, 8347, 10234, 13748, 16694, 20468, 21113, 27496, 33388, 40936, 42226, 58429, 66776, 84452, 116858, 147791, 168904, 233716, 295582, 358921, 467432, 591164, 717842, 1182328, 1435684, 2512447, 2871368, 5024894, 10049788, 20099576]

約数ペア:

[(1, 20099576), (2, 10049788), (4, 5024894), (7, 2871368), (8, 2512447), (14, 1435684), (17, 1182328), (28, 717842), (34, 591164), (43, 467432), (56, 358921), (68, 295582), (86, 233716), (119, 168904), (136, 147791), (172, 116858), (238, 84452), (301, 66776), (344, 58429), (476, 42226), (491, 40936), (602, 33388), (731, 27496), (952, 21113), (982, 20468), (1204, 16694), (1462, 13748), (1964, 10234), (2408, 8347), (2924, 6874), (3437, 5848), (3928, 5117)]