27878800

素因数分解:

$2^4\times 5^2\times {\mathrm{69697}}^1$

素因数の和:69715

約数の個数: 30

約数和(自身を含む): 66979778

約数和(自身を除く): 39100978

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 69697, 139394, 278788, 348485, 557576, 696970, 1115152, 1393940, 1742425, 2787880, 3484850, 5575760, 6969700, 13939400, 27878800]

約数ペア:

[(1, 27878800), (2, 13939400), (4, 6969700), (5, 5575760), (8, 3484850), (10, 2787880), (16, 1742425), (20, 1393940), (25, 1115152), (40, 696970), (50, 557576), (80, 348485), (100, 278788), (200, 139394), (400, 69697)]