81887840

素因数分解:

$2^5\times 5^1\times {\mathrm{577}}^1\times {\mathrm{887}}^1$

素因数の和:1479

約数の個数: 48

約数和(自身を含む): 194013792

約数和(自身を除く): 112125952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 577, 887, 1154, 1774, 2308, 2885, 3548, 4435, 4616, 5770, 7096, 8870, 9232, 11540, 14192, 17740, 18464, 23080, 28384, 35480, 46160, 70960, 92320, 141920, 511799, 1023598, 2047196, 2558995, 4094392, 5117990, 8188784, 10235980, 16377568, 20471960, 40943920, 81887840]

約数ペア:

[(1, 81887840), (2, 40943920), (4, 20471960), (5, 16377568), (8, 10235980), (10, 8188784), (16, 5117990), (20, 4094392), (32, 2558995), (40, 2047196), (80, 1023598), (160, 511799), (577, 141920), (887, 92320), (1154, 70960), (1774, 46160), (2308, 35480), (2885, 28384), (3548, 23080), (4435, 18464), (4616, 17740), (5770, 14192), (7096, 11540), (8870, 9232)]