320260400

素因数分解:

$2^4\times 5^2\times {\mathrm{800651}}^1$

素因数の和:800669

約数の個数: 30

約数和(自身を含む): 769426572

約数和(自身を除く): 449166172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 800651, 1601302, 3202604, 4003255, 6405208, 8006510, 12810416, 16013020, 20016275, 32026040, 40032550, 64052080, 80065100, 160130200, 320260400]

約数ペア:

[(1, 320260400), (2, 160130200), (4, 80065100), (5, 64052080), (8, 40032550), (10, 32026040), (16, 20016275), (20, 16013020), (25, 12810416), (40, 8006510), (50, 6405208), (80, 4003255), (100, 3202604), (200, 1601302), (400, 800651)]