121967720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{661}}^1$

素因数の和:1338

約数の個数: 64

約数和(自身を含む): 314582400

約数和(自身を除く): 192614680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 659, 661, 1318, 1322, 2636, 2644, 3295, 3305, 4613, 4627, 5272, 5288, 6590, 6610, 9226, 9254, 13180, 13220, 18452, 18508, 23065, 23135, 26360, 26440, 36904, 37016, 46130, 46270, 92260, 92540, 184520, 185080, 435599, 871198, 1742396, 2177995, 3049193, 3484792, 4355990, 6098386, 8711980, 12196772, 15245965, 17423960, 24393544, 30491930, 60983860, 121967720]

約数ペア:

[(1, 121967720), (2, 60983860), (4, 30491930), (5, 24393544), (7, 17423960), (8, 15245965), (10, 12196772), (14, 8711980), (20, 6098386), (28, 4355990), (35, 3484792), (40, 3049193), (56, 2177995), (70, 1742396), (140, 871198), (280, 435599), (659, 185080), (661, 184520), (1318, 92540), (1322, 92260), (2636, 46270), (2644, 46130), (3295, 37016), (3305, 36904), (4613, 26440), (4627, 26360), (5272, 23135), (5288, 23065), (6590, 18508), (6610, 18452), (9226, 13220), (9254, 13180)]