19802090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25717}}^1$

素因数の和:25742

約数の個数: 32

約数和(自身を含む): 44440704

約数和(自身を除く): 24638614

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 25717, 51434, 128585, 180019, 257170, 282887, 360038, 565774, 900095, 1414435, 1800190, 1980209, 2828870, 3960418, 9901045, 19802090]

約数ペア:

[(1, 19802090), (2, 9901045), (5, 3960418), (7, 2828870), (10, 1980209), (11, 1800190), (14, 1414435), (22, 900095), (35, 565774), (55, 360038), (70, 282887), (77, 257170), (110, 180019), (154, 128585), (385, 51434), (770, 25717)]