20208255

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8581}}^1$

素因数の和:8746

約数の個数: 16

約数和(自身を含む): 32542944

約数和(自身を除く): 12334689

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 8581, 25743, 42905, 128715, 1347217, 4041651, 6736085, 20208255]

約数ペア:

[(1, 20208255), (3, 6736085), (5, 4041651), (15, 1347217), (157, 128715), (471, 42905), (785, 25743), (2355, 8581)]