20735710

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5171}}^1$

素因数の和:5579

約数の個数: 16

約数和(自身を含む): 37424592

約数和(自身を除く): 16688882

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5171, 10342, 25855, 51710, 2073571, 4147142, 10367855, 20735710]

約数ペア:

[(1, 20735710), (2, 10367855), (5, 4147142), (10, 2073571), (401, 51710), (802, 25855), (2005, 10342), (4010, 5171)]