858521780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{442537}}^1$

素因数の和:442643

約数の個数: 24

約数和(自身を含む): 1821486408

約数和(自身を除く): 962964628

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 442537, 885074, 1770148, 2212685, 4425370, 8850740, 42926089, 85852178, 171704356, 214630445, 429260890, 858521780]

約数ペア:

[(1, 858521780), (2, 429260890), (4, 214630445), (5, 171704356), (10, 85852178), (20, 42926089), (97, 8850740), (194, 4425370), (388, 2212685), (485, 1770148), (970, 885074), (1940, 442537)]