890251780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{60397}}^1$

素因数の和:60484

約数の個数: 48

約数和(自身を含む): 2069960256

約数和(自身を除く): 1179708476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 7370, 14740, 60397, 120794, 241588, 301985, 603970, 664367, 1207940, 1328734, 2657468, 3321835, 4046599, 6643670, 8093198, 13287340, 16186396, 20232995, 40465990, 44512589, 80931980, 89025178, 178050356, 222562945, 445125890, 890251780]

約数ペア:

[(1, 890251780), (2, 445125890), (4, 222562945), (5, 178050356), (10, 89025178), (11, 80931980), (20, 44512589), (22, 40465990), (44, 20232995), (55, 16186396), (67, 13287340), (110, 8093198), (134, 6643670), (220, 4046599), (268, 3321835), (335, 2657468), (670, 1328734), (737, 1207940), (1340, 664367), (1474, 603970), (2948, 301985), (3685, 241588), (7370, 120794), (14740, 60397)]