81983045

素因数分解:

$5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 99725808

約数和(自身を除く): 17742763

約数列:

[1, 5, 157, 181, 577, 785, 905, 2885, 28417, 90589, 104437, 142085, 452945, 522185, 16396609, 81983045]

約数ペア:

[(1, 81983045), (5, 16396609), (157, 522185), (181, 452945), (577, 142085), (785, 104437), (905, 90589), (2885, 28417)]