1309364440

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{1867}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 2995898400

約数和(自身を除く): 1686533960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 197, 356, 394, 445, 712, 788, 890, 985, 1576, 1780, 1867, 1970, 3560, 3734, 3940, 7468, 7880, 9335, 14936, 17533, 18670, 35066, 37340, 70132, 74680, 87665, 140264, 166163, 175330, 332326, 350660, 367799, 664652, 701320, 735598, 830815, 1329304, 1471196, 1661630, 1838995, 2942392, 3323260, 3677990, 6646520, 7355980, 14711960, 32734111, 65468222, 130936444, 163670555, 261872888, 327341110, 654682220, 1309364440]

約数ペア:

[(1, 1309364440), (2, 654682220), (4, 327341110), (5, 261872888), (8, 163670555), (10, 130936444), (20, 65468222), (40, 32734111), (89, 14711960), (178, 7355980), (197, 6646520), (356, 3677990), (394, 3323260), (445, 2942392), (712, 1838995), (788, 1661630), (890, 1471196), (985, 1329304), (1576, 830815), (1780, 735598), (1867, 701320), (1970, 664652), (3560, 367799), (3734, 350660), (3940, 332326), (7468, 175330), (7880, 166163), (9335, 140264), (14936, 87665), (17533, 74680), (18670, 70132), (35066, 37340)]