120784640

素因数分解:

$2^8\times 5^1\times {\mathrm{197}}^1\times {\mathrm{479}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 291392640

約数和(自身を除く): 170608000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 479, 640, 788, 958, 985, 1280, 1576, 1916, 1970, 2395, 3152, 3832, 3940, 4790, 6304, 7664, 7880, 9580, 12608, 15328, 15760, 19160, 25216, 30656, 31520, 38320, 50432, 61312, 63040, 76640, 94363, 122624, 126080, 153280, 188726, 252160, 306560, 377452, 471815, 613120, 754904, 943630, 1509808, 1887260, 3019616, 3774520, 6039232, 7549040, 12078464, 15098080, 24156928, 30196160, 60392320, 120784640]

約数ペア:

[(1, 120784640), (2, 60392320), (4, 30196160), (5, 24156928), (8, 15098080), (10, 12078464), (16, 7549040), (20, 6039232), (32, 3774520), (40, 3019616), (64, 1887260), (80, 1509808), (128, 943630), (160, 754904), (197, 613120), (256, 471815), (320, 377452), (394, 306560), (479, 252160), (640, 188726), (788, 153280), (958, 126080), (985, 122624), (1280, 94363), (1576, 76640), (1916, 63040), (1970, 61312), (2395, 50432), (3152, 38320), (3832, 31520), (3940, 30656), (4790, 25216), (6304, 19160), (7664, 15760), (7880, 15328), (9580, 12608)]