128196440

素因数分解:

$2^3\times 5^1\times {\mathrm{3204911}}^1$

素因数の和:3204922

約数の個数: 16

約数和(自身を含む): 288442080

約数和(自身を除く): 160245640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3204911, 6409822, 12819644, 16024555, 25639288, 32049110, 64098220, 128196440]

約数ペア:

[(1, 128196440), (2, 64098220), (4, 32049110), (5, 25639288), (8, 16024555), (10, 12819644), (20, 6409822), (40, 3204911)]