28639554

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 63037440

約数和(自身を除く): 34397886

約数列:

[1, 2, 3, 6, 23, 37, 46, 69, 71, 74, 79, 111, 138, 142, 158, 213, 222, 237, 426, 474, 851, 1633, 1702, 1817, 2553, 2627, 2923, 3266, 3634, 4899, 5106, 5254, 5451, 5609, 5846, 7881, 8769, 9798, 10902, 11218, 15762, 16827, 17538, 33654, 60421, 67229, 120842, 129007, 134458, 181263, 201687, 207533, 258014, 362526, 387021, 403374, 415066, 622599, 774042, 1245198, 4773259, 9546518, 14319777, 28639554]

約数ペア:

[(1, 28639554), (2, 14319777), (3, 9546518), (6, 4773259), (23, 1245198), (37, 774042), (46, 622599), (69, 415066), (71, 403374), (74, 387021), (79, 362526), (111, 258014), (138, 207533), (142, 201687), (158, 181263), (213, 134458), (222, 129007), (237, 120842), (426, 67229), (474, 60421), (851, 33654), (1633, 17538), (1702, 16827), (1817, 15762), (2553, 11218), (2627, 10902), (2923, 9798), (3266, 8769), (3634, 7881), (4899, 5846), (5106, 5609), (5254, 5451)]