90987940

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{46901}}^1$

素因数の和:47007

約数の個数: 24

約数和(自身を含む): 193048632

約数和(自身を除く): 102060692

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 46901, 93802, 187604, 234505, 469010, 938020, 4549397, 9098794, 18197588, 22746985, 45493970, 90987940]

約数ペア:

[(1, 90987940), (2, 45493970), (4, 22746985), (5, 18197588), (10, 9098794), (20, 4549397), (97, 938020), (194, 469010), (388, 234505), (485, 187604), (970, 93802), (1940, 46901)]