28979800

素因数分解:

$2^3\times 5^2\times {\mathrm{144899}}^1$

素因数の和:144915

約数の個数: 24

約数和(自身を含む): 67378500

約数和(自身を除く): 38398700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 144899, 289798, 579596, 724495, 1159192, 1448990, 2897980, 3622475, 5795960, 7244950, 14489900, 28979800]

約数ペア:

[(1, 28979800), (2, 14489900), (4, 7244950), (5, 5795960), (8, 3622475), (10, 2897980), (20, 1448990), (25, 1159192), (40, 724495), (50, 579596), (100, 289798), (200, 144899)]