7977820

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1669}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 16833600

約数和(自身を除く): 8855780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 1669, 2390, 3338, 4780, 6676, 8345, 16690, 33380, 398891, 797782, 1595564, 1994455, 3988910, 7977820]

約数ペア:

[(1, 7977820), (2, 3988910), (4, 1994455), (5, 1595564), (10, 797782), (20, 398891), (239, 33380), (478, 16690), (956, 8345), (1195, 6676), (1669, 4780), (2390, 3338)]