449450

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 24

約数和(自身を含む): 853740

約数和(自身を除く): 404290

約数列:

[1, 2, 5, 10, 25, 50, 89, 101, 178, 202, 445, 505, 890, 1010, 2225, 2525, 4450, 5050, 8989, 17978, 44945, 89890, 224725, 449450]

約数ペア:

[(1, 449450), (2, 224725), (5, 89890), (10, 44945), (25, 17978), (50, 8989), (89, 5050), (101, 4450), (178, 2525), (202, 2225), (445, 1010), (505, 890)]