28657690

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{27823}}^1$

素因数の和:27933

約数の個数: 16

約数和(自身を含む): 52086528

約数和(自身を除く): 23428838

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 27823, 55646, 139115, 278230, 2865769, 5731538, 14328845, 28657690]

約数ペア:

[(1, 28657690), (2, 14328845), (5, 5731538), (10, 2865769), (103, 278230), (206, 139115), (515, 55646), (1030, 27823)]