19650220

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3823}}^1$

素因数の和:4089

約数の個数: 24

約数和(自身を含む): 41436864

約数和(自身を除く): 21786644

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 3823, 5140, 7646, 15292, 19115, 38230, 76460, 982511, 1965022, 3930044, 4912555, 9825110, 19650220]

約数ペア:

[(1, 19650220), (2, 9825110), (4, 4912555), (5, 3930044), (10, 1965022), (20, 982511), (257, 76460), (514, 38230), (1028, 19115), (1285, 15292), (2570, 7646), (3823, 5140)]