80781456

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{240421}}^1$

素因数の和:240439

約数の個数: 40

約数和(自身を含む): 238498624

約数和(自身を除く): 157717168

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 240421, 480842, 721263, 961684, 1442526, 1682947, 1923368, 2885052, 3365894, 3846736, 5048841, 5770104, 6731788, 10097682, 11540208, 13463576, 20195364, 26927152, 40390728, 80781456]

約数ペア:

[(1, 80781456), (2, 40390728), (3, 26927152), (4, 20195364), (6, 13463576), (7, 11540208), (8, 10097682), (12, 6731788), (14, 5770104), (16, 5048841), (21, 3846736), (24, 3365894), (28, 2885052), (42, 1923368), (48, 1682947), (56, 1442526), (84, 961684), (112, 721263), (168, 480842), (336, 240421)]