88890140

素因数分解:

$2^2\times 5^1\times {\mathrm{4444507}}^1$

素因数の和:4444516

約数の個数: 12

約数和(自身を含む): 186669336

約数和(自身を除く): 97779196

約数列:

[1, 2, 4, 5, 10, 20, 4444507, 8889014, 17778028, 22222535, 44445070, 88890140]

約数ペア:

[(1, 88890140), (2, 44445070), (4, 22222535), (5, 17778028), (10, 8889014), (20, 4444507)]