2543620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1429}}^1$

素因数の和:1527

約数の個数: 24

約数和(自身を含む): 5405400

約数和(自身を除く): 2861780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1429, 1780, 2858, 5716, 7145, 14290, 28580, 127181, 254362, 508724, 635905, 1271810, 2543620]

約数ペア:

[(1, 2543620), (2, 1271810), (4, 635905), (5, 508724), (10, 254362), (20, 127181), (89, 28580), (178, 14290), (356, 7145), (445, 5716), (890, 2858), (1429, 1780)]