40081420

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19457}}^1$

素因数の和:19569

約数の個数: 24

約数和(自身を含む): 84992544

約数和(自身を除く): 44911124

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 19457, 38914, 77828, 97285, 194570, 389140, 2004071, 4008142, 8016284, 10020355, 20040710, 40081420]

約数ペア:

[(1, 40081420), (2, 20040710), (4, 10020355), (5, 8016284), (10, 4008142), (20, 2004071), (103, 389140), (206, 194570), (412, 97285), (515, 77828), (1030, 38914), (2060, 19457)]