20477540

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6131}}^1$

素因数の和:6307

約数の個数: 24

約数和(自身を含む): 43267392

約数和(自身を除く): 22789852

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 6131, 12262, 24524, 30655, 61310, 122620, 1023877, 2047754, 4095508, 5119385, 10238770, 20477540]

約数ペア:

[(1, 20477540), (2, 10238770), (4, 5119385), (5, 4095508), (10, 2047754), (20, 1023877), (167, 122620), (334, 61310), (668, 30655), (835, 24524), (1670, 12262), (3340, 6131)]