80391311

素因数分解:

$7^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 111720000

約数和(自身を除く): 31328689

約数列:

[1, 7, 11, 13, 49, 77, 91, 121, 143, 149, 343, 539, 637, 847, 1001, 1043, 1573, 1639, 1937, 3773, 4459, 5929, 7007, 7301, 11011, 11473, 13559, 18029, 21307, 41503, 49049, 51107, 77077, 80311, 94913, 126203, 149149, 234377, 539539, 562177, 664391, 883421, 1044043, 1640639, 6183947, 7308301, 11484473, 80391311]

約数ペア:

[(1, 80391311), (7, 11484473), (11, 7308301), (13, 6183947), (49, 1640639), (77, 1044043), (91, 883421), (121, 664391), (143, 562177), (149, 539539), (343, 234377), (539, 149149), (637, 126203), (847, 94913), (1001, 80311), (1043, 77077), (1573, 51107), (1639, 49049), (1937, 41503), (3773, 21307), (4459, 18029), (5929, 13559), (7007, 11473), (7301, 11011)]