20749180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61027}}^1$

素因数の和:61053

約数の個数: 24

約数和(自身を含む): 46137168

約数和(自身を除く): 25387988

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 61027, 122054, 244108, 305135, 610270, 1037459, 1220540, 2074918, 4149836, 5187295, 10374590, 20749180]

約数ペア:

[(1, 20749180), (2, 10374590), (4, 5187295), (5, 4149836), (10, 2074918), (17, 1220540), (20, 1037459), (34, 610270), (68, 305135), (85, 244108), (170, 122054), (340, 61027)]