12986240

素因数分解:

$2^7\times 5^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 31505760

約数和(自身を除く): 18519520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 197, 206, 320, 394, 412, 515, 640, 788, 824, 985, 1030, 1576, 1648, 1970, 2060, 3152, 3296, 3940, 4120, 6304, 6592, 7880, 8240, 12608, 13184, 15760, 16480, 20291, 25216, 31520, 32960, 40582, 63040, 65920, 81164, 101455, 126080, 162328, 202910, 324656, 405820, 649312, 811640, 1298624, 1623280, 2597248, 3246560, 6493120, 12986240]

約数ペア:

[(1, 12986240), (2, 6493120), (4, 3246560), (5, 2597248), (8, 1623280), (10, 1298624), (16, 811640), (20, 649312), (32, 405820), (40, 324656), (64, 202910), (80, 162328), (103, 126080), (128, 101455), (160, 81164), (197, 65920), (206, 63040), (320, 40582), (394, 32960), (412, 31520), (515, 25216), (640, 20291), (788, 16480), (824, 15760), (985, 13184), (1030, 12608), (1576, 8240), (1648, 7880), (1970, 6592), (2060, 6304), (3152, 4120), (3296, 3940)]