201520120

素因数分解:

$2^3\times 5^1\times {\mathrm{5038003}}^1$

素因数の和:5038014

約数の個数: 16

約数和(自身を含む): 453420360

約数和(自身を除く): 251900240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5038003, 10076006, 20152012, 25190015, 40304024, 50380030, 100760060, 201520120]

約数ペア:

[(1, 201520120), (2, 100760060), (4, 50380030), (5, 40304024), (8, 25190015), (10, 20152012), (20, 10076006), (40, 5038003)]