23140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:111

約数の個数: 24

約数和(自身を含む): 52920

約数和(自身を除く): 29780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2314, 4628, 5785, 11570, 23140]

約数ペア:

[(1, 23140), (2, 11570), (4, 5785), (5, 4628), (10, 2314), (13, 1780), (20, 1157), (26, 890), (52, 445), (65, 356), (89, 260), (130, 178)]