80963020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{37139}}^1$

素因数の和:37257

約数の個数: 24

約数和(自身を含む): 171586800

約数和(自身を除く): 90623780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 37139, 74278, 148556, 185695, 371390, 742780, 4048151, 8096302, 16192604, 20240755, 40481510, 80963020]

約数ペア:

[(1, 80963020), (2, 40481510), (4, 20240755), (5, 16192604), (10, 8096302), (20, 4048151), (109, 742780), (218, 371390), (436, 185695), (545, 148556), (1090, 74278), (2180, 37139)]