20342220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1721}}^1$

素因数の和:1930

約数の個数: 48

約数和(自身を含む): 57280608

約数和(自身を除く): 36938388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1721, 1970, 2364, 2955, 3442, 3940, 5163, 5910, 6884, 8605, 10326, 11820, 17210, 20652, 25815, 34420, 51630, 103260, 339037, 678074, 1017111, 1356148, 1695185, 2034222, 3390370, 4068444, 5085555, 6780740, 10171110, 20342220]

約数ペア:

[(1, 20342220), (2, 10171110), (3, 6780740), (4, 5085555), (5, 4068444), (6, 3390370), (10, 2034222), (12, 1695185), (15, 1356148), (20, 1017111), (30, 678074), (60, 339037), (197, 103260), (394, 51630), (591, 34420), (788, 25815), (985, 20652), (1182, 17210), (1721, 11820), (1970, 10326), (2364, 8605), (2955, 6884), (3442, 5910), (3940, 5163)]