66722140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{70981}}^1$

素因数の和:71037

約数の個数: 24

約数和(自身を含む): 143099712

約数和(自身を除く): 76377572

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 70981, 141962, 283924, 354905, 709810, 1419620, 3336107, 6672214, 13344428, 16680535, 33361070, 66722140]

約数ペア:

[(1, 66722140), (2, 33361070), (4, 16680535), (5, 13344428), (10, 6672214), (20, 3336107), (47, 1419620), (94, 709810), (188, 354905), (235, 283924), (470, 141962), (940, 70981)]