66863120

素因数分解:

$2^4\times 5^1\times {\mathrm{835789}}^1$

素因数の和:835802

約数の個数: 20

約数和(自身を含む): 155456940

約数和(自身を除く): 88593820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 835789, 1671578, 3343156, 4178945, 6686312, 8357890, 13372624, 16715780, 33431560, 66863120]

約数ペア:

[(1, 66863120), (2, 33431560), (4, 16715780), (5, 13372624), (8, 8357890), (10, 6686312), (16, 4178945), (20, 3343156), (40, 1671578), (80, 835789)]