189150980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{219943}}^1$

素因数の和:219995

約数の個数: 24

約数和(自身を含む): 406456512

約数和(自身を除く): 217305532

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 219943, 439886, 879772, 1099715, 2199430, 4398860, 9457549, 18915098, 37830196, 47287745, 94575490, 189150980]

約数ペア:

[(1, 189150980), (2, 94575490), (4, 47287745), (5, 37830196), (10, 18915098), (20, 9457549), (43, 4398860), (86, 2199430), (172, 1099715), (215, 879772), (430, 439886), (860, 219943)]