199573840

素因数分解:

$2^4\times 5^1\times {\mathrm{2494673}}^1$

素因数の和:2494686

約数の個数: 20

約数和(自身を含む): 464009364

約数和(自身を除く): 264435524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2494673, 4989346, 9978692, 12473365, 19957384, 24946730, 39914768, 49893460, 99786920, 199573840]

約数ペア:

[(1, 199573840), (2, 99786920), (4, 49893460), (5, 39914768), (8, 24946730), (10, 19957384), (16, 12473365), (20, 9978692), (40, 4989346), (80, 2494673)]