31505140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{18979}}^1$

素因数の和:19071

約数の個数: 24

約数和(自身を含む): 66961440

約数和(自身を除く): 35456300

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 18979, 37958, 75916, 94895, 189790, 379580, 1575257, 3150514, 6301028, 7876285, 15752570, 31505140]

約数ペア:

[(1, 31505140), (2, 15752570), (4, 7876285), (5, 6301028), (10, 3150514), (20, 1575257), (83, 379580), (166, 189790), (332, 94895), (415, 75916), (830, 37958), (1660, 18979)]