19680400

素因数分解:

$2^4\times 5^2\times {\mathrm{49201}}^1$

素因数の和:49219

約数の個数: 30

約数和(自身を含む): 47283122

約数和(自身を除く): 27602722

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49201, 98402, 196804, 246005, 393608, 492010, 787216, 984020, 1230025, 1968040, 2460050, 3936080, 4920100, 9840200, 19680400]

約数ペア:

[(1, 19680400), (2, 9840200), (4, 4920100), (5, 3936080), (8, 2460050), (10, 1968040), (16, 1230025), (20, 984020), (25, 787216), (40, 492010), (50, 393608), (80, 246005), (100, 196804), (200, 98402), (400, 49201)]