20659360

素因数分解:

$2^5\times 5^1\times {\mathrm{129121}}^1$

素因数の和:129136

約数の個数: 24

約数和(自身を含む): 48808116

約数和(自身を除く): 28148756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 129121, 258242, 516484, 645605, 1032968, 1291210, 2065936, 2582420, 4131872, 5164840, 10329680, 20659360]

約数ペア:

[(1, 20659360), (2, 10329680), (4, 5164840), (5, 4131872), (8, 2582420), (10, 2065936), (16, 1291210), (20, 1032968), (32, 645605), (40, 516484), (80, 258242), (160, 129121)]