20419576

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{601}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 39876480

約数和(自身を除く): 19456904

約数列:

[1, 2, 4, 8, 31, 62, 124, 137, 248, 274, 548, 601, 1096, 1202, 2404, 4247, 4808, 8494, 16988, 18631, 33976, 37262, 74524, 82337, 149048, 164674, 329348, 658696, 2552447, 5104894, 10209788, 20419576]

約数ペア:

[(1, 20419576), (2, 10209788), (4, 5104894), (8, 2552447), (31, 658696), (62, 329348), (124, 164674), (137, 149048), (248, 82337), (274, 74524), (548, 37262), (601, 33976), (1096, 18631), (1202, 16988), (2404, 8494), (4247, 4808)]