2137780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1201}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 4543560

約数和(自身を除く): 2405780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1201, 1780, 2402, 4804, 6005, 12010, 24020, 106889, 213778, 427556, 534445, 1068890, 2137780]

約数ペア:

[(1, 2137780), (2, 1068890), (4, 534445), (5, 427556), (10, 213778), (20, 106889), (89, 24020), (178, 12010), (356, 6005), (445, 4804), (890, 2402), (1201, 1780)]