312790760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{71741}}^1$

素因数の和:71861

約数の個数: 32

約数和(自身を含む): 710245800

約数和(自身を除く): 397455040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 71741, 143482, 286964, 358705, 573928, 717410, 1434820, 2869640, 7819769, 15639538, 31279076, 39098845, 62558152, 78197690, 156395380, 312790760]

約数ペア:

[(1, 312790760), (2, 156395380), (4, 78197690), (5, 62558152), (8, 39098845), (10, 31279076), (20, 15639538), (40, 7819769), (109, 2869640), (218, 1434820), (436, 717410), (545, 573928), (872, 358705), (1090, 286964), (2180, 143482), (4360, 71741)]