799220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 1701000

約数和(自身を除く): 901780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 449, 890, 898, 1780, 1796, 2245, 4490, 8980, 39961, 79922, 159844, 199805, 399610, 799220]

約数ペア:

[(1, 799220), (2, 399610), (4, 199805), (5, 159844), (10, 79922), (20, 39961), (89, 8980), (178, 4490), (356, 2245), (445, 1796), (449, 1780), (890, 898)]