20945710

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29501}}^1$

素因数の和:29579

約数の個数: 16

約数和(自身を含む): 38234592

約数和(自身を除く): 17288882

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29501, 59002, 147505, 295010, 2094571, 4189142, 10472855, 20945710]

約数ペア:

[(1, 20945710), (2, 10472855), (5, 4189142), (10, 2094571), (71, 295010), (142, 147505), (355, 59002), (710, 29501)]