2646860

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1487}}^1$

素因数の和:1585

約数の個数: 24

約数和(自身を含む): 5624640

約数和(自身を除く): 2977780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1487, 1780, 2974, 5948, 7435, 14870, 29740, 132343, 264686, 529372, 661715, 1323430, 2646860]

約数ペア:

[(1, 2646860), (2, 1323430), (4, 661715), (5, 529372), (10, 264686), (20, 132343), (89, 29740), (178, 14870), (356, 7435), (445, 5948), (890, 2974), (1487, 1780)]