218554960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6779}}^1$

素因数の和:6836

約数の個数: 80

約数和(自身を含む): 564963840

約数和(自身を除く): 346408880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 6779, 8060, 13558, 16120, 27116, 32240, 33895, 54232, 67790, 88127, 108464, 135580, 176254, 210149, 271160, 352508, 420298, 440635, 542320, 705016, 840596, 881270, 1050745, 1410032, 1681192, 1762540, 2101490, 2731937, 3362384, 3525080, 4202980, 5463874, 7050160, 8405960, 10927748, 13659685, 16811920, 21855496, 27319370, 43710992, 54638740, 109277480, 218554960]

約数ペア:

[(1, 218554960), (2, 109277480), (4, 54638740), (5, 43710992), (8, 27319370), (10, 21855496), (13, 16811920), (16, 13659685), (20, 10927748), (26, 8405960), (31, 7050160), (40, 5463874), (52, 4202980), (62, 3525080), (65, 3362384), (80, 2731937), (104, 2101490), (124, 1762540), (130, 1681192), (155, 1410032), (208, 1050745), (248, 881270), (260, 840596), (310, 705016), (403, 542320), (496, 440635), (520, 420298), (620, 352508), (806, 271160), (1040, 210149), (1240, 176254), (1612, 135580), (2015, 108464), (2480, 88127), (3224, 67790), (4030, 54232), (6448, 33895), (6779, 32240), (8060, 27116), (13558, 16120)]