278880456940

素因数分解:

$2^2\times 5^1\times {\mathrm{71879}}^1\times {\mathrm{193993}}^1$

素因数の和:265881

約数の個数: 24

約数和(自身を含む): 585660126240

約数和(自身を除く): 306779669300

約数列:

[1, 2, 4, 5, 10, 20, 71879, 143758, 193993, 287516, 359395, 387986, 718790, 775972, 969965, 1437580, 1939930, 3879860, 13944022847, 27888045694, 55776091388, 69720114235, 139440228470, 278880456940]

約数ペア:

[(1, 278880456940), (2, 139440228470), (4, 69720114235), (5, 55776091388), (10, 27888045694), (20, 13944022847), (71879, 3879860), (143758, 1939930), (193993, 1437580), (287516, 969965), (359395, 775972), (387986, 718790)]