15720440

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3673}}^1$

素因数の和:3791

約数の個数: 32

約数和(自身を含む): 35711280

約数和(自身を除く): 19990840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 3673, 4280, 7346, 14692, 18365, 29384, 36730, 73460, 146920, 393011, 786022, 1572044, 1965055, 3144088, 3930110, 7860220, 15720440]

約数ペア:

[(1, 15720440), (2, 7860220), (4, 3930110), (5, 3144088), (8, 1965055), (10, 1572044), (20, 786022), (40, 393011), (107, 146920), (214, 73460), (428, 36730), (535, 29384), (856, 18365), (1070, 14692), (2140, 7346), (3673, 4280)]