20920400

素因数分解:

$2^4\times 5^2\times {\mathrm{52301}}^1$

素因数の和:52319

約数の個数: 30

約数和(自身を含む): 50262222

約数和(自身を除く): 29341822

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52301, 104602, 209204, 261505, 418408, 523010, 836816, 1046020, 1307525, 2092040, 2615050, 4184080, 5230100, 10460200, 20920400]

約数ペア:

[(1, 20920400), (2, 10460200), (4, 5230100), (5, 4184080), (8, 2615050), (10, 2092040), (16, 1307525), (20, 1046020), (25, 836816), (40, 523010), (50, 418408), (80, 261505), (100, 209204), (200, 104602), (400, 52301)]