815328880

素因数分解:

$2^4\times 5^1\times {\mathrm{10191611}}^1$

素因数の和:10191624

約数の個数: 20

約数和(自身を含む): 1895639832

約数和(自身を除く): 1080310952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10191611, 20383222, 40766444, 50958055, 81532888, 101916110, 163065776, 203832220, 407664440, 815328880]

約数ペア:

[(1, 815328880), (2, 407664440), (4, 203832220), (5, 163065776), (8, 101916110), (10, 81532888), (16, 50958055), (20, 40766444), (40, 20383222), (80, 10191611)]