173620040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2003}}^1$

素因数の和:2222

約数の個数: 64

約数和(自身を含む): 428535360

約数和(自身を除く): 254915320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 394, 440, 788, 985, 1576, 1970, 2003, 2167, 3940, 4006, 4334, 7880, 8012, 8668, 10015, 10835, 16024, 17336, 20030, 21670, 22033, 40060, 43340, 44066, 80120, 86680, 88132, 110165, 176264, 220330, 394591, 440660, 789182, 881320, 1578364, 1972955, 3156728, 3945910, 4340501, 7891820, 8681002, 15783640, 17362004, 21702505, 34724008, 43405010, 86810020, 173620040]

約数ペア:

[(1, 173620040), (2, 86810020), (4, 43405010), (5, 34724008), (8, 21702505), (10, 17362004), (11, 15783640), (20, 8681002), (22, 7891820), (40, 4340501), (44, 3945910), (55, 3156728), (88, 1972955), (110, 1578364), (197, 881320), (220, 789182), (394, 440660), (440, 394591), (788, 220330), (985, 176264), (1576, 110165), (1970, 88132), (2003, 86680), (2167, 80120), (3940, 44066), (4006, 43340), (4334, 40060), (7880, 22033), (8012, 21670), (8668, 20030), (10015, 17336), (10835, 16024)]