81373516

素因数分解:

$2^2\times 7^2\times {\mathrm{415171}}^1$

素因数の和:415189

約数の個数: 18

約数和(自身を含む): 165653628

約数和(自身を除く): 84280112

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 415171, 830342, 1660684, 2906197, 5812394, 11624788, 20343379, 40686758, 81373516]

約数ペア:

[(1, 81373516), (2, 40686758), (4, 20343379), (7, 11624788), (14, 5812394), (28, 2906197), (49, 1660684), (98, 830342), (196, 415171)]