2102180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1181}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 4467960

約数和(自身を除く): 2365780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1181, 1780, 2362, 4724, 5905, 11810, 23620, 105109, 210218, 420436, 525545, 1051090, 2102180]

約数ペア:

[(1, 2102180), (2, 1051090), (4, 525545), (5, 420436), (10, 210218), (20, 105109), (89, 23620), (178, 11810), (356, 5905), (445, 4724), (890, 2362), (1181, 1780)]