42509420

素因数分解:

$2^2\times 5^1\times {\mathrm{2125471}}^1$

素因数の和:2125480

約数の個数: 12

約数和(自身を含む): 89269824

約数和(自身を除く): 46760404

約数列:

[1, 2, 4, 5, 10, 20, 2125471, 4250942, 8501884, 10627355, 21254710, 42509420]

約数ペア:

[(1, 42509420), (2, 21254710), (4, 10627355), (5, 8501884), (10, 4250942), (20, 2125471)]