278325586

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{307}}^1$

素因数の和:392

約数の個数: 72

約数和(自身を含む): 550485936

約数和(自身を除く): 272160350

約数列:

[1, 2, 7, 11, 14, 22, 29, 49, 58, 77, 98, 154, 203, 307, 319, 406, 539, 614, 638, 841, 1078, 1421, 1682, 2149, 2233, 2842, 3377, 4298, 4466, 5887, 6754, 8903, 9251, 11774, 15043, 15631, 17806, 18502, 23639, 30086, 31262, 41209, 47278, 62321, 64757, 82418, 97933, 124642, 129514, 165473, 195866, 258187, 330946, 436247, 453299, 516374, 685531, 872494, 906598, 1371062, 1807309, 2840057, 3614618, 4798717, 5680114, 9597434, 12651163, 19880399, 25302326, 39760798, 139162793, 278325586]

約数ペア:

[(1, 278325586), (2, 139162793), (7, 39760798), (11, 25302326), (14, 19880399), (22, 12651163), (29, 9597434), (49, 5680114), (58, 4798717), (77, 3614618), (98, 2840057), (154, 1807309), (203, 1371062), (307, 906598), (319, 872494), (406, 685531), (539, 516374), (614, 453299), (638, 436247), (841, 330946), (1078, 258187), (1421, 195866), (1682, 165473), (2149, 129514), (2233, 124642), (2842, 97933), (3377, 82418), (4298, 64757), (4466, 62321), (5887, 47278), (6754, 41209), (8903, 31262), (9251, 30086), (11774, 23639), (15043, 18502), (15631, 17806)]