81278155

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{80077}}^1$

素因数の和:80118

約数の個数: 16

約数和(自身を含む): 115312320

約数和(自身を除く): 34034165

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 80077, 400385, 560539, 2322233, 2802695, 11611165, 16255631, 81278155]

約数ペア:

[(1, 81278155), (5, 16255631), (7, 11611165), (29, 2802695), (35, 2322233), (145, 560539), (203, 400385), (1015, 80077)]