79782800

素因数分解:

$2^4\times 5^2\times {\mathrm{199457}}^1$

素因数の和:199475

約数の個数: 30

約数和(自身を含む): 191679138

約数和(自身を除く): 111896338

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199457, 398914, 797828, 997285, 1595656, 1994570, 3191312, 3989140, 4986425, 7978280, 9972850, 15956560, 19945700, 39891400, 79782800]

約数ペア:

[(1, 79782800), (2, 39891400), (4, 19945700), (5, 15956560), (8, 9972850), (10, 7978280), (16, 4986425), (20, 3989140), (25, 3191312), (40, 1994570), (50, 1595656), (80, 997285), (100, 797828), (200, 398914), (400, 199457)]