398784048

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{997}}^1$

素因数の和:1662

約数の個数: 80

約数和(自身を含む): 1112282976

約数和(自身を除く): 713498928

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 641, 997, 1282, 1923, 1994, 2564, 2991, 3846, 3988, 5128, 5982, 7692, 7976, 8333, 10256, 11964, 12961, 15384, 15952, 16666, 23928, 24999, 25922, 30768, 33332, 38883, 47856, 49998, 51844, 66664, 77766, 99996, 103688, 133328, 155532, 199992, 207376, 311064, 399984, 622128, 639077, 1278154, 1917231, 2556308, 3834462, 5112616, 7668924, 8308001, 10225232, 15337848, 16616002, 24924003, 30675696, 33232004, 49848006, 66464008, 99696012, 132928016, 199392024, 398784048]

約数ペア:

[(1, 398784048), (2, 199392024), (3, 132928016), (4, 99696012), (6, 66464008), (8, 49848006), (12, 33232004), (13, 30675696), (16, 24924003), (24, 16616002), (26, 15337848), (39, 10225232), (48, 8308001), (52, 7668924), (78, 5112616), (104, 3834462), (156, 2556308), (208, 1917231), (312, 1278154), (624, 639077), (641, 622128), (997, 399984), (1282, 311064), (1923, 207376), (1994, 199992), (2564, 155532), (2991, 133328), (3846, 103688), (3988, 99996), (5128, 77766), (5982, 66664), (7692, 51844), (7976, 49998), (8333, 47856), (10256, 38883), (11964, 33332), (12961, 30768), (15384, 25922), (15952, 24999), (16666, 23928)]