19928064

素因数分解:

$2^{10}\times 3^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:535

約数の個数: 88

約数和(自身を含む): 57316000

約数和(自身を除く): 37387936

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 499, 512, 624, 768, 832, 998, 1024, 1248, 1497, 1536, 1664, 1996, 2496, 2994, 3072, 3328, 3992, 4992, 5988, 6487, 6656, 7984, 9984, 11976, 12974, 13312, 15968, 19461, 19968, 23952, 25948, 31936, 38922, 39936, 47904, 51896, 63872, 77844, 95808, 103792, 127744, 155688, 191616, 207584, 255488, 311376, 383232, 415168, 510976, 622752, 766464, 830336, 1245504, 1532928, 1660672, 2491008, 3321344, 4982016, 6642688, 9964032, 19928064]

約数ペア:

[(1, 19928064), (2, 9964032), (3, 6642688), (4, 4982016), (6, 3321344), (8, 2491008), (12, 1660672), (13, 1532928), (16, 1245504), (24, 830336), (26, 766464), (32, 622752), (39, 510976), (48, 415168), (52, 383232), (64, 311376), (78, 255488), (96, 207584), (104, 191616), (128, 155688), (156, 127744), (192, 103792), (208, 95808), (256, 77844), (312, 63872), (384, 51896), (416, 47904), (499, 39936), (512, 38922), (624, 31936), (768, 25948), (832, 23952), (998, 19968), (1024, 19461), (1248, 15968), (1497, 13312), (1536, 12974), (1664, 11976), (1996, 9984), (2496, 7984), (2994, 6656), (3072, 6487), (3328, 5988), (3992, 4992)]