199470980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{231943}}^1$

素因数の和:231995

約数の個数: 24

約数和(自身を含む): 428632512

約数和(自身を除く): 229161532

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 231943, 463886, 927772, 1159715, 2319430, 4638860, 9973549, 19947098, 39894196, 49867745, 99735490, 199470980]

約数ペア:

[(1, 199470980), (2, 99735490), (4, 49867745), (5, 39894196), (10, 19947098), (20, 9973549), (43, 4638860), (86, 2319430), (172, 1159715), (215, 927772), (430, 463886), (860, 231943)]