13561480

素因数分解:

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

素因数の和:1929

約数の個数: 32

約数和(自身を含む): 30686040

約数和(自身を除く): 17124560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1721, 1970, 3442, 3940, 6884, 7880, 8605, 13768, 17210, 34420, 68840, 339037, 678074, 1356148, 1695185, 2712296, 3390370, 6780740, 13561480]

約数ペア:

[(1, 13561480), (2, 6780740), (4, 3390370), (5, 2712296), (8, 1695185), (10, 1356148), (20, 678074), (40, 339037), (197, 68840), (394, 34420), (788, 17210), (985, 13768), (1576, 8605), (1721, 7880), (1970, 6884), (3442, 3940)]