28704065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3371}}^1$

素因数の和:3520

約数の個数: 16

約数和(自身を含む): 37388736

約数和(自身を除く): 8684671

約数列:

[1, 5, 13, 65, 131, 655, 1703, 3371, 8515, 16855, 43823, 219115, 441601, 2208005, 5740813, 28704065]

約数ペア:

[(1, 28704065), (5, 5740813), (13, 2208005), (65, 441601), (131, 219115), (655, 43823), (1703, 16855), (3371, 8515)]