7856840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1907}}^1$

素因数の和:2021

約数の個数: 32

約数和(自身を含む): 17858880

約数和(自身を除く): 10002040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 1907, 2060, 3814, 4120, 7628, 9535, 15256, 19070, 38140, 76280, 196421, 392842, 785684, 982105, 1571368, 1964210, 3928420, 7856840]

約数ペア:

[(1, 7856840), (2, 3928420), (4, 1964210), (5, 1571368), (8, 982105), (10, 785684), (20, 392842), (40, 196421), (103, 76280), (206, 38140), (412, 19070), (515, 15256), (824, 9535), (1030, 7628), (1907, 4120), (2060, 3814)]