39356660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1427}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 95001984

約数和(自身を除く): 55645324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1427, 1970, 2758, 2854, 3940, 5516, 5708, 6895, 7135, 9989, 13790, 14270, 19978, 27580, 28540, 39956, 49945, 99890, 199780, 281119, 562238, 1124476, 1405595, 1967833, 2811190, 3935666, 5622380, 7871332, 9839165, 19678330, 39356660]

約数ペア:

[(1, 39356660), (2, 19678330), (4, 9839165), (5, 7871332), (7, 5622380), (10, 3935666), (14, 2811190), (20, 1967833), (28, 1405595), (35, 1124476), (70, 562238), (140, 281119), (197, 199780), (394, 99890), (788, 49945), (985, 39956), (1379, 28540), (1427, 27580), (1970, 19978), (2758, 14270), (2854, 13790), (3940, 9989), (5516, 7135), (5708, 6895)]