2581264

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1247

約数の個数: 40

約数和(自身を含む): 6021440

約数和(自身を除く): 3440176

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 1213, 2128, 2426, 4852, 8491, 9704, 16982, 19408, 23047, 33964, 46094, 67928, 92188, 135856, 161329, 184376, 322658, 368752, 645316, 1290632, 2581264]

約数ペア:

[(1, 2581264), (2, 1290632), (4, 645316), (7, 368752), (8, 322658), (14, 184376), (16, 161329), (19, 135856), (28, 92188), (38, 67928), (56, 46094), (76, 33964), (112, 23047), (133, 19408), (152, 16982), (266, 9704), (304, 8491), (532, 4852), (1064, 2426), (1213, 2128)]