19715780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140827}}^1$

素因数の和:140843

約数の個数: 24

約数和(自身を含む): 47318208

約数和(自身を除く): 27602428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140827, 281654, 563308, 704135, 985789, 1408270, 1971578, 2816540, 3943156, 4928945, 9857890, 19715780]

約数ペア:

[(1, 19715780), (2, 9857890), (4, 4928945), (5, 3943156), (7, 2816540), (10, 1971578), (14, 1408270), (20, 985789), (28, 704135), (35, 563308), (70, 281654), (140, 140827)]