256506214

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{21001}}^1$

素因数の和:21231

約数の個数: 16

約数和(自身を含む): 399206016

約数和(自身を除く): 142699802

約数列:

[1, 2, 31, 62, 197, 394, 6107, 12214, 21001, 42002, 651031, 1302062, 4137197, 8274394, 128253107, 256506214]

約数ペア:

[(1, 256506214), (2, 128253107), (31, 8274394), (62, 4137197), (197, 1302062), (394, 651031), (6107, 42002), (12214, 21001)]