257375830

素因数分解:

$2^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{72911}}^1$

素因数の和:73271

約数の個数: 16

約数和(自身を含む): 464595264

約数和(自身を除く): 207219434

約数列:

[1, 2, 5, 10, 353, 706, 1765, 3530, 72911, 145822, 364555, 729110, 25737583, 51475166, 128687915, 257375830]

約数ペア:

[(1, 257375830), (2, 128687915), (5, 51475166), (10, 25737583), (353, 729110), (706, 364555), (1765, 145822), (3530, 72911)]