128224340

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{7481}}^1$

素因数の和:8347

約数の個数: 24

約数和(自身を含む): 269621352

約数和(自身を除く): 141397012

約数列:

[1, 2, 4, 5, 10, 20, 857, 1714, 3428, 4285, 7481, 8570, 14962, 17140, 29924, 37405, 74810, 149620, 6411217, 12822434, 25644868, 32056085, 64112170, 128224340]

約数ペア:

[(1, 128224340), (2, 64112170), (4, 32056085), (5, 25644868), (10, 12822434), (20, 6411217), (857, 149620), (1714, 74810), (3428, 37405), (4285, 29924), (7481, 17140), (8570, 14962)]