19220656

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 47052544

約数和(自身を除く): 27831888

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 52, 56, 86, 91, 104, 112, 172, 182, 208, 301, 307, 344, 364, 559, 602, 614, 688, 728, 1118, 1204, 1228, 1456, 2149, 2236, 2408, 2456, 3913, 3991, 4298, 4472, 4816, 4912, 7826, 7982, 8596, 8944, 13201, 15652, 15964, 17192, 26402, 27937, 31304, 31928, 34384, 52804, 55874, 62608, 63856, 92407, 105608, 111748, 171613, 184814, 211216, 223496, 343226, 369628, 446992, 686452, 739256, 1201291, 1372904, 1478512, 2402582, 2745808, 4805164, 9610328, 19220656]

約数ペア:

[(1, 19220656), (2, 9610328), (4, 4805164), (7, 2745808), (8, 2402582), (13, 1478512), (14, 1372904), (16, 1201291), (26, 739256), (28, 686452), (43, 446992), (52, 369628), (56, 343226), (86, 223496), (91, 211216), (104, 184814), (112, 171613), (172, 111748), (182, 105608), (208, 92407), (301, 63856), (307, 62608), (344, 55874), (364, 52804), (559, 34384), (602, 31928), (614, 31304), (688, 27937), (728, 26402), (1118, 17192), (1204, 15964), (1228, 15652), (1456, 13201), (2149, 8944), (2236, 8596), (2408, 7982), (2456, 7826), (3913, 4912), (3991, 4816), (4298, 4472)]