7857220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{56123}}^1$

素因数の和:56139

約数の個数: 24

約数和(自身を含む): 18857664

約数和(自身を除く): 11000444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 56123, 112246, 224492, 280615, 392861, 561230, 785722, 1122460, 1571444, 1964305, 3928610, 7857220]

約数ペア:

[(1, 7857220), (2, 3928610), (4, 1964305), (5, 1571444), (7, 1122460), (10, 785722), (14, 561230), (20, 392861), (28, 280615), (35, 224492), (70, 112246), (140, 56123)]