20180015

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1\times {\mathrm{281}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 24852096

約数和(自身を除く): 4672081

約数列:

[1, 5, 53, 265, 271, 281, 1355, 1405, 14363, 14893, 71815, 74465, 76151, 380755, 4036003, 20180015]

約数ペア:

[(1, 20180015), (5, 4036003), (53, 380755), (265, 76151), (271, 74465), (281, 71815), (1355, 14893), (1405, 14363)]