19904510

素因数分解:

$2^1\times 5^1\times {\mathrm{383}}^1\times {\mathrm{5197}}^1$

素因数の和:5587

約数の個数: 16

約数和(自身を含む): 35928576

約数和(自身を除く): 16024066

約数列:

[1, 2, 5, 10, 383, 766, 1915, 3830, 5197, 10394, 25985, 51970, 1990451, 3980902, 9952255, 19904510]

約数ペア:

[(1, 19904510), (2, 9952255), (5, 3980902), (10, 1990451), (383, 51970), (766, 25985), (1915, 10394), (3830, 5197)]