89290640

素因数分解:

$2^4\times 5^1\times {\mathrm{1116133}}^1$

素因数の和:1116146

約数の個数: 20

約数和(自身を含む): 207600924

約数和(自身を除く): 118310284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1116133, 2232266, 4464532, 5580665, 8929064, 11161330, 17858128, 22322660, 44645320, 89290640]

約数ペア:

[(1, 89290640), (2, 44645320), (4, 22322660), (5, 17858128), (8, 11161330), (10, 8929064), (16, 5580665), (20, 4464532), (40, 2232266), (80, 1116133)]