218046815

素因数分解:

$5^1\times 7^4\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:517

約数の個数: 40

約数和(自身を含む): 313398288

約数和(自身を除く): 95351473

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 343, 443, 1435, 1715, 2009, 2215, 2401, 3101, 10045, 12005, 14063, 15505, 18163, 21707, 70315, 90815, 98441, 108535, 127141, 151949, 492205, 635705, 759745, 889987, 1063643, 4449935, 5318215, 6229909, 31149545, 43609363, 218046815]

約数ペア:

[(1, 218046815), (5, 43609363), (7, 31149545), (35, 6229909), (41, 5318215), (49, 4449935), (205, 1063643), (245, 889987), (287, 759745), (343, 635705), (443, 492205), (1435, 151949), (1715, 127141), (2009, 108535), (2215, 98441), (2401, 90815), (3101, 70315), (10045, 21707), (12005, 18163), (14063, 15505)]