80628716

素因数分解:

$2^2\times 7^2\times {\mathrm{411371}}^1$

素因数の和:411389

約数の個数: 18

約数和(自身を含む): 164137428

約数和(自身を除く): 83508712

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 411371, 822742, 1645484, 2879597, 5759194, 11518388, 20157179, 40314358, 80628716]

約数ペア:

[(1, 80628716), (2, 40314358), (4, 20157179), (7, 11518388), (14, 5759194), (28, 2879597), (49, 1645484), (98, 822742), (196, 411371)]