222561650

素因数分解:

$2^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 423071880

約数和(自身を除く): 200510230

約数列:

[1, 2, 5, 10, 25, 50, 97, 109, 194, 218, 421, 485, 545, 842, 970, 1090, 2105, 2425, 2725, 4210, 4850, 5450, 10525, 10573, 21050, 21146, 40837, 45889, 52865, 81674, 91778, 105730, 204185, 229445, 264325, 408370, 458890, 528650, 1020925, 1147225, 2041850, 2294450, 4451233, 8902466, 22256165, 44512330, 111280825, 222561650]

約数ペア:

[(1, 222561650), (2, 111280825), (5, 44512330), (10, 22256165), (25, 8902466), (50, 4451233), (97, 2294450), (109, 2041850), (194, 1147225), (218, 1020925), (421, 528650), (485, 458890), (545, 408370), (842, 264325), (970, 229445), (1090, 204185), (2105, 105730), (2425, 91778), (2725, 81674), (4210, 52865), (4850, 45889), (5450, 40837), (10525, 21146), (10573, 21050)]