19737040

素因数分解:

$2^4\times 5^1\times {\mathrm{246713}}^1$

素因数の和:246726

約数の個数: 20

約数和(自身を含む): 45888804

約数和(自身を除く): 26151764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246713, 493426, 986852, 1233565, 1973704, 2467130, 3947408, 4934260, 9868520, 19737040]

約数ペア:

[(1, 19737040), (2, 9868520), (4, 4934260), (5, 3947408), (8, 2467130), (10, 1973704), (16, 1233565), (20, 986852), (40, 493426), (80, 246713)]