81998285

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{1621}}^1$

素因数の和:1844

約数の個数: 16

約数和(自身を含む): 100589952

約数和(自身を除く): 18591667

約数列:

[1, 5, 67, 151, 335, 755, 1621, 8105, 10117, 50585, 108607, 244771, 543035, 1223855, 16399657, 81998285]

約数ペア:

[(1, 81998285), (5, 16399657), (67, 1223855), (151, 543035), (335, 244771), (755, 108607), (1621, 50585), (8105, 10117)]