639676

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 1239840

約数和(自身を除く): 600164

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 409, 782, 818, 1564, 1636, 6953, 9407, 13906, 18814, 27812, 37628, 159919, 319838, 639676]

約数ペア:

[(1, 639676), (2, 319838), (4, 159919), (17, 37628), (23, 27812), (34, 18814), (46, 13906), (68, 9407), (92, 6953), (391, 1636), (409, 1564), (782, 818)]