639847545

素因数分解:

$3^1\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{28571}}^1$

素因数の和:30072

約数の個数: 16

約数和(自身を含む): 1024477632

約数和(自身を除く): 384630087

約数列:

[1, 3, 5, 15, 1493, 4479, 7465, 22395, 28571, 85713, 142855, 428565, 42656503, 127969509, 213282515, 639847545]

約数ペア:

[(1, 639847545), (3, 213282515), (5, 127969509), (15, 42656503), (1493, 428565), (4479, 142855), (7465, 85713), (22395, 28571)]