3937220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28123}}^1$

素因数の和:28139

約数の個数: 24

約数和(自身を含む): 9449664

約数和(自身を除く): 5512444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28123, 56246, 112492, 140615, 196861, 281230, 393722, 562460, 787444, 984305, 1968610, 3937220]

約数ペア:

[(1, 3937220), (2, 1968610), (4, 984305), (5, 787444), (7, 562460), (10, 393722), (14, 281230), (20, 196861), (28, 140615), (35, 112492), (70, 56246), (140, 28123)]