256340735

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1\times {\mathrm{337}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 357706752

約数和(自身を除く): 101366017

約数列:

[1, 5, 7, 35, 103, 211, 337, 515, 721, 1055, 1477, 1685, 2359, 3605, 7385, 11795, 21733, 34711, 71107, 108665, 152131, 173555, 242977, 355535, 497749, 760655, 1214885, 2488745, 7324021, 36620105, 51268147, 256340735]

約数ペア:

[(1, 256340735), (5, 51268147), (7, 36620105), (35, 7324021), (103, 2488745), (211, 1214885), (337, 760655), (515, 497749), (721, 355535), (1055, 242977), (1477, 173555), (1685, 152131), (2359, 108665), (3605, 71107), (7385, 34711), (11795, 21733)]