81286688

素因数分解:

$2^5\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1174

約数の個数: 72

約数和(自身を含む): 190294272

約数和(自身を除く): 109007584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 49, 56, 94, 98, 112, 188, 196, 224, 329, 376, 392, 658, 752, 784, 1103, 1316, 1504, 1568, 2206, 2303, 2632, 4412, 4606, 5264, 7721, 8824, 9212, 10528, 15442, 17648, 18424, 30884, 35296, 36848, 51841, 54047, 61768, 73696, 103682, 108094, 123536, 207364, 216188, 247072, 362887, 414728, 432376, 725774, 829456, 864752, 1451548, 1658912, 1729504, 2540209, 2903096, 5080418, 5806192, 10160836, 11612384, 20321672, 40643344, 81286688]

約数ペア:

[(1, 81286688), (2, 40643344), (4, 20321672), (7, 11612384), (8, 10160836), (14, 5806192), (16, 5080418), (28, 2903096), (32, 2540209), (47, 1729504), (49, 1658912), (56, 1451548), (94, 864752), (98, 829456), (112, 725774), (188, 432376), (196, 414728), (224, 362887), (329, 247072), (376, 216188), (392, 207364), (658, 123536), (752, 108094), (784, 103682), (1103, 73696), (1316, 61768), (1504, 54047), (1568, 51841), (2206, 36848), (2303, 35296), (2632, 30884), (4412, 18424), (4606, 17648), (5264, 15442), (7721, 10528), (8824, 9212)]