688340

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 1462272

約数和(自身を除く): 773932

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 271, 508, 542, 635, 1084, 1270, 1355, 2540, 2710, 5420, 34417, 68834, 137668, 172085, 344170, 688340]

約数ペア:

[(1, 688340), (2, 344170), (4, 172085), (5, 137668), (10, 68834), (20, 34417), (127, 5420), (254, 2710), (271, 2540), (508, 1355), (542, 1270), (635, 1084)]