81368588

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{25717}}^1$

素因数の和:25841

約数の個数: 24

約数和(自身を含む): 164183712

約数和(自身を除く): 82815124

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 25717, 51434, 102868, 180019, 360038, 720076, 2906021, 5812042, 11624084, 20342147, 40684294, 81368588]

約数ペア:

[(1, 81368588), (2, 40684294), (4, 20342147), (7, 11624084), (14, 5812042), (28, 2906021), (113, 720076), (226, 360038), (452, 180019), (791, 102868), (1582, 51434), (3164, 25717)]