81487916

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{1297}}^1$

素因数の和:1553

約数の個数: 24

約数和(自身を含む): 145012560

約数和(自身を除く): 63524644

約数列:

[1, 2, 4, 113, 139, 226, 278, 452, 556, 1297, 2594, 5188, 15707, 31414, 62828, 146561, 180283, 293122, 360566, 586244, 721132, 20371979, 40743958, 81487916]

約数ペア:

[(1, 81487916), (2, 40743958), (4, 20371979), (113, 721132), (139, 586244), (226, 360566), (278, 293122), (452, 180283), (556, 146561), (1297, 62828), (2594, 31414), (5188, 15707)]