40542860

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19681}}^1$

素因数の和:19793

約数の個数: 24

約数和(自身を含む): 85970976

約数和(自身を除く): 45428116

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 19681, 39362, 78724, 98405, 196810, 393620, 2027143, 4054286, 8108572, 10135715, 20271430, 40542860]

約数ペア:

[(1, 40542860), (2, 20271430), (4, 10135715), (5, 8108572), (10, 4054286), (20, 2027143), (103, 393620), (206, 196810), (412, 98405), (515, 78724), (1030, 39362), (2060, 19681)]