20166095920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1223}}^1\times {\mathrm{2903}}^1$

素因数の和:4210

約数の個数: 80

約数和(自身を含む): 47601810432

約数和(自身を除く): 27435714512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1223, 1420, 2446, 2840, 2903, 4892, 5680, 5806, 6115, 9784, 11612, 12230, 14515, 19568, 23224, 24460, 29030, 46448, 48920, 58060, 86833, 97840, 116120, 173666, 206113, 232240, 347332, 412226, 434165, 694664, 824452, 868330, 1030565, 1389328, 1648904, 1736660, 2061130, 3297808, 3473320, 3550369, 4122260, 6946640, 7100738, 8244520, 14201476, 16489040, 17751845, 28402952, 35503690, 56805904, 71007380, 142014760, 252076199, 284029520, 504152398, 1008304796, 1260380995, 2016609592, 2520761990, 4033219184, 5041523980, 10083047960, 20166095920]

約数ペア:

[(1, 20166095920), (2, 10083047960), (4, 5041523980), (5, 4033219184), (8, 2520761990), (10, 2016609592), (16, 1260380995), (20, 1008304796), (40, 504152398), (71, 284029520), (80, 252076199), (142, 142014760), (284, 71007380), (355, 56805904), (568, 35503690), (710, 28402952), (1136, 17751845), (1223, 16489040), (1420, 14201476), (2446, 8244520), (2840, 7100738), (2903, 6946640), (4892, 4122260), (5680, 3550369), (5806, 3473320), (6115, 3297808), (9784, 2061130), (11612, 1736660), (12230, 1648904), (14515, 1389328), (19568, 1030565), (23224, 868330), (24460, 824452), (29030, 694664), (46448, 434165), (48920, 412226), (58060, 347332), (86833, 232240), (97840, 206113), (116120, 173666)]