19380040

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6637}}^1$

素因数の和:6721

約数の個数: 32

約数和(自身を含む): 44209080

約数和(自身を除く): 24829040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6637, 13274, 26548, 33185, 53096, 66370, 132740, 265480, 484501, 969002, 1938004, 2422505, 3876008, 4845010, 9690020, 19380040]

約数ペア:

[(1, 19380040), (2, 9690020), (4, 4845010), (5, 3876008), (8, 2422505), (10, 1938004), (20, 969002), (40, 484501), (73, 265480), (146, 132740), (292, 66370), (365, 53096), (584, 33185), (730, 26548), (1460, 13274), (2920, 6637)]