78422480

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2777}}^1$

素因数の和:3143

約数の個数: 40

約数和(自身を含む): 182914632

約数和(自身を除く): 104492152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1412, 1765, 2777, 2824, 3530, 5554, 5648, 7060, 11108, 13885, 14120, 22216, 27770, 28240, 44432, 55540, 111080, 222160, 980281, 1960562, 3921124, 4901405, 7842248, 9802810, 15684496, 19605620, 39211240, 78422480]

約数ペア:

[(1, 78422480), (2, 39211240), (4, 19605620), (5, 15684496), (8, 9802810), (10, 7842248), (16, 4901405), (20, 3921124), (40, 1960562), (80, 980281), (353, 222160), (706, 111080), (1412, 55540), (1765, 44432), (2777, 28240), (2824, 27770), (3530, 22216), (5554, 14120), (5648, 13885), (7060, 11108)]