668889195

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{1237}}^1$

素因数の和:1364

約数の個数: 64

約数和(自身を含む): 1197987840

約数和(自身を除く): 529098645

約数列:

[1, 3, 5, 13, 15, 39, 47, 59, 65, 141, 177, 195, 235, 295, 611, 705, 767, 885, 1237, 1833, 2301, 2773, 3055, 3711, 3835, 6185, 8319, 9165, 11505, 13865, 16081, 18555, 36049, 41595, 48243, 58139, 72983, 80405, 108147, 174417, 180245, 218949, 241215, 290695, 364915, 540735, 755807, 872085, 948779, 1094745, 2267421, 2846337, 3430201, 3779035, 4743895, 10290603, 11337105, 14231685, 17151005, 44592613, 51453015, 133777839, 222963065, 668889195]

約数ペア:

[(1, 668889195), (3, 222963065), (5, 133777839), (13, 51453015), (15, 44592613), (39, 17151005), (47, 14231685), (59, 11337105), (65, 10290603), (141, 4743895), (177, 3779035), (195, 3430201), (235, 2846337), (295, 2267421), (611, 1094745), (705, 948779), (767, 872085), (885, 755807), (1237, 540735), (1833, 364915), (2301, 290695), (2773, 241215), (3055, 218949), (3711, 180245), (3835, 174417), (6185, 108147), (8319, 80405), (9165, 72983), (11505, 58139), (13865, 48243), (16081, 41595), (18555, 36049)]