639933972

素因数分解:

$2^2\times 3^1\times {\mathrm{239}}^1\times {\mathrm{223129}}^1$

素因数の和:223375

約数の個数: 24

約数和(自身を含む): 1499433600

約数和(自身を除く): 859499628

約数列:

[1, 2, 3, 4, 6, 12, 239, 478, 717, 956, 1434, 2868, 223129, 446258, 669387, 892516, 1338774, 2677548, 53327831, 106655662, 159983493, 213311324, 319966986, 639933972]

約数ペア:

[(1, 639933972), (2, 319966986), (3, 213311324), (4, 159983493), (6, 106655662), (12, 53327831), (239, 2677548), (478, 1338774), (717, 892516), (956, 669387), (1434, 446258), (2868, 223129)]