20357890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{290827}}^1$

素因数の和:290841

約数の個数: 16

約数和(自身を含む): 41879232

約数和(自身を除く): 21521342

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 290827, 581654, 1454135, 2035789, 2908270, 4071578, 10178945, 20357890]

約数ペア:

[(1, 20357890), (2, 10178945), (5, 4071578), (7, 2908270), (10, 2035789), (14, 1454135), (35, 581654), (70, 290827)]