28686280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102451}}^1$

素因数の和:102469

約数の個数: 32

約数和(自身を含む): 73765440

約数和(自身を除く): 45079160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102451, 204902, 409804, 512255, 717157, 819608, 1024510, 1434314, 2049020, 2868628, 3585785, 4098040, 5737256, 7171570, 14343140, 28686280]

約数ペア:

[(1, 28686280), (2, 14343140), (4, 7171570), (5, 5737256), (7, 4098040), (8, 3585785), (10, 2868628), (14, 2049020), (20, 1434314), (28, 1024510), (35, 819608), (40, 717157), (56, 512255), (70, 409804), (140, 204902), (280, 102451)]