257244286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{28513}}^1$

素因数の和:28875

約数の個数: 16

約数和(自身を含む): 416760624

約数和(自身を除く): 159516338

約数列:

[1, 2, 13, 26, 347, 694, 4511, 9022, 28513, 57026, 370669, 741338, 9894011, 19788022, 128622143, 257244286]

約数ペア:

[(1, 257244286), (2, 128622143), (13, 19788022), (26, 9894011), (347, 741338), (694, 370669), (4511, 57026), (9022, 28513)]