18875776

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 39951360

約数和(自身を除く): 21075584

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 71, 124, 128, 134, 142, 248, 268, 284, 496, 536, 568, 992, 1072, 1136, 1984, 2077, 2144, 2201, 2272, 3968, 4154, 4288, 4402, 4544, 4757, 8308, 8576, 8804, 9088, 9514, 16616, 17608, 19028, 33232, 35216, 38056, 66464, 70432, 76112, 132928, 140864, 147467, 152224, 265856, 281728, 294934, 304448, 589868, 608896, 1179736, 2359472, 4718944, 9437888, 18875776]

約数ペア:

[(1, 18875776), (2, 9437888), (4, 4718944), (8, 2359472), (16, 1179736), (31, 608896), (32, 589868), (62, 304448), (64, 294934), (67, 281728), (71, 265856), (124, 152224), (128, 147467), (134, 140864), (142, 132928), (248, 76112), (268, 70432), (284, 66464), (496, 38056), (536, 35216), (568, 33232), (992, 19028), (1072, 17608), (1136, 16616), (1984, 9514), (2077, 9088), (2144, 8804), (2201, 8576), (2272, 8308), (3968, 4757), (4154, 4544), (4288, 4402)]