1998050

素因数分解:

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

素因数の和:550

約数の個数: 24

約数和(自身を含む): 3766500

約数和(自身を除く): 1768450

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 449, 890, 898, 2225, 2245, 4450, 4490, 11225, 22450, 39961, 79922, 199805, 399610, 999025, 1998050]

約数ペア:

[(1, 1998050), (2, 999025), (5, 399610), (10, 199805), (25, 79922), (50, 39961), (89, 22450), (178, 11225), (445, 4490), (449, 4450), (890, 2245), (898, 2225)]