978171340

素因数分解:

$2^2\times 5^1\times {\mathrm{4111}}^1\times {\mathrm{11897}}^1$

素因数の和:16017

約数の個数: 24

約数和(自身を含む): 2054832192

約数和(自身を除く): 1076660852

約数列:

[1, 2, 4, 5, 10, 20, 4111, 8222, 11897, 16444, 20555, 23794, 41110, 47588, 59485, 82220, 118970, 237940, 48908567, 97817134, 195634268, 244542835, 489085670, 978171340]

約数ペア:

[(1, 978171340), (2, 489085670), (4, 244542835), (5, 195634268), (10, 97817134), (20, 48908567), (4111, 237940), (8222, 118970), (11897, 82220), (16444, 59485), (20555, 47588), (23794, 41110)]