19940290

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:502

約数の個数: 32

約数和(自身を含む): 36966384

約数和(自身を除く): 17026094

約数列:

[1, 2, 5, 10, 61, 97, 122, 194, 305, 337, 485, 610, 674, 970, 1685, 3370, 5917, 11834, 20557, 29585, 32689, 41114, 59170, 65378, 102785, 163445, 205570, 326890, 1994029, 3988058, 9970145, 19940290]

約数ペア:

[(1, 19940290), (2, 9970145), (5, 3988058), (10, 1994029), (61, 326890), (97, 205570), (122, 163445), (194, 102785), (305, 65378), (337, 59170), (485, 41114), (610, 32689), (674, 29585), (970, 20557), (1685, 11834), (3370, 5917)]