80318800

素因数分解:

$2^4\times 5^2\times {\mathrm{200797}}^1$

素因数の和:200815

約数の個数: 30

約数和(自身を含む): 192966878

約数和(自身を除く): 112648078

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 200797, 401594, 803188, 1003985, 1606376, 2007970, 3212752, 4015940, 5019925, 8031880, 10039850, 16063760, 20079700, 40159400, 80318800]

約数ペア:

[(1, 80318800), (2, 40159400), (4, 20079700), (5, 16063760), (8, 10039850), (10, 8031880), (16, 5019925), (20, 4015940), (25, 3212752), (40, 2007970), (50, 1606376), (80, 1003985), (100, 803188), (200, 401594), (400, 200797)]