20789439255

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{159361}}^1$

素因数の和:159608

約数の個数: 48

約数和(自身を含む): 38981220096

約数和(自身を除く): 18191780841

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 223, 585, 669, 1115, 2007, 2899, 3345, 8697, 10035, 14495, 26091, 43485, 130455, 159361, 478083, 796805, 1434249, 2071693, 2390415, 6215079, 7171245, 10358465, 18645237, 31075395, 35537503, 93226185, 106612509, 177687515, 319837527, 461987539, 533062545, 1385962617, 1599187635, 2309937695, 4157887851, 6929813085, 20789439255]

約数ペア:

[(1, 20789439255), (3, 6929813085), (5, 4157887851), (9, 2309937695), (13, 1599187635), (15, 1385962617), (39, 533062545), (45, 461987539), (65, 319837527), (117, 177687515), (195, 106612509), (223, 93226185), (585, 35537503), (669, 31075395), (1115, 18645237), (2007, 10358465), (2899, 7171245), (3345, 6215079), (8697, 2390415), (10035, 2071693), (14495, 1434249), (26091, 796805), (43485, 478083), (130455, 159361)]