19987008

素因数分解:

$2^6\times 3^1\times {\mathrm{41}}^1\times {\mathrm{2539}}^1$

素因数の和:2595

約数の個数: 56

約数和(自身を含む): 54193440

約数和(自身を除く): 34206432

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 164, 192, 246, 328, 492, 656, 984, 1312, 1968, 2539, 2624, 3936, 5078, 7617, 7872, 10156, 15234, 20312, 30468, 40624, 60936, 81248, 104099, 121872, 162496, 208198, 243744, 312297, 416396, 487488, 624594, 832792, 1249188, 1665584, 2498376, 3331168, 4996752, 6662336, 9993504, 19987008]

約数ペア:

[(1, 19987008), (2, 9993504), (3, 6662336), (4, 4996752), (6, 3331168), (8, 2498376), (12, 1665584), (16, 1249188), (24, 832792), (32, 624594), (41, 487488), (48, 416396), (64, 312297), (82, 243744), (96, 208198), (123, 162496), (164, 121872), (192, 104099), (246, 81248), (328, 60936), (492, 40624), (656, 30468), (984, 20312), (1312, 15234), (1968, 10156), (2539, 7872), (2624, 7617), (3936, 5078)]