4021220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28723}}^1$

素因数の和:28739

約数の個数: 24

約数和(自身を含む): 9651264

約数和(自身を除く): 5630044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28723, 57446, 114892, 143615, 201061, 287230, 402122, 574460, 804244, 1005305, 2010610, 4021220]

約数ペア:

[(1, 4021220), (2, 2010610), (4, 1005305), (5, 804244), (7, 574460), (10, 402122), (14, 287230), (20, 201061), (28, 143615), (35, 114892), (70, 57446), (140, 28723)]