264620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 565488

約数和(自身を除く): 300868

約数列:

[1, 2, 4, 5, 10, 20, 101, 131, 202, 262, 404, 505, 524, 655, 1010, 1310, 2020, 2620, 13231, 26462, 52924, 66155, 132310, 264620]

約数ペア:

[(1, 264620), (2, 132310), (4, 66155), (5, 52924), (10, 26462), (20, 13231), (101, 2620), (131, 2020), (202, 1310), (262, 1010), (404, 655), (505, 524)]