28780045

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{6277}}^1$

素因数の和:6420

約数の個数: 16

約数和(自身を含む): 39777408

約数和(自身を除く): 10997363

約数列:

[1, 5, 7, 35, 131, 655, 917, 4585, 6277, 31385, 43939, 219695, 822287, 4111435, 5756009, 28780045]

約数ペア:

[(1, 28780045), (5, 5756009), (7, 4111435), (35, 822287), (131, 219695), (655, 43939), (917, 31385), (4585, 6277)]