81431296

素因数分解:

$2^8\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 54

約数和(自身を含む): 168464436

約数和(自身を除く): 87033140

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 331, 496, 662, 961, 992, 1324, 1922, 1984, 2648, 3844, 3968, 5296, 7688, 7936, 10261, 10592, 15376, 20522, 21184, 30752, 41044, 42368, 61504, 82088, 84736, 123008, 164176, 246016, 318091, 328352, 636182, 656704, 1272364, 1313408, 2544728, 2626816, 5089456, 10178912, 20357824, 40715648, 81431296]

約数ペア:

[(1, 81431296), (2, 40715648), (4, 20357824), (8, 10178912), (16, 5089456), (31, 2626816), (32, 2544728), (62, 1313408), (64, 1272364), (124, 656704), (128, 636182), (248, 328352), (256, 318091), (331, 246016), (496, 164176), (662, 123008), (961, 84736), (992, 82088), (1324, 61504), (1922, 42368), (1984, 41044), (2648, 30752), (3844, 21184), (3968, 20522), (5296, 15376), (7688, 10592), (7936, 10261)]