28680265

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 35024400

約数和(自身を除く): 6344135

約数列:

[1, 5, 137, 149, 281, 685, 745, 1405, 20413, 38497, 41869, 102065, 192485, 209345, 5736053, 28680265]

約数ペア:

[(1, 28680265), (5, 5736053), (137, 209345), (149, 192485), (281, 102065), (685, 41869), (745, 38497), (1405, 20413)]