28261266

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 64613376

約数和(自身を除く): 36352110

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 66, 71, 74, 111, 142, 163, 213, 222, 326, 407, 426, 489, 781, 814, 978, 1221, 1562, 1793, 2343, 2442, 2627, 3586, 4686, 5254, 5379, 6031, 7881, 10758, 11573, 12062, 15762, 18093, 23146, 28897, 34719, 36186, 57794, 66341, 69438, 86691, 127303, 132682, 173382, 199023, 254606, 381909, 398046, 428201, 763818, 856402, 1284603, 2569206, 4710211, 9420422, 14130633, 28261266]

約数ペア:

[(1, 28261266), (2, 14130633), (3, 9420422), (6, 4710211), (11, 2569206), (22, 1284603), (33, 856402), (37, 763818), (66, 428201), (71, 398046), (74, 381909), (111, 254606), (142, 199023), (163, 173382), (213, 132682), (222, 127303), (326, 86691), (407, 69438), (426, 66341), (489, 57794), (781, 36186), (814, 34719), (978, 28897), (1221, 23146), (1562, 18093), (1793, 15762), (2343, 12062), (2442, 11573), (2627, 10758), (3586, 7881), (4686, 6031), (5254, 5379)]