12789205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 18643968

約数和(自身を除く): 5854763

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 577, 715, 1705, 2015, 2885, 4433, 6347, 7501, 17887, 22165, 31735, 37505, 82511, 89435, 196757, 232531, 412555, 983785, 1162655, 2557841, 12789205]

約数ペア:

[(1, 12789205), (5, 2557841), (11, 1162655), (13, 983785), (31, 412555), (55, 232531), (65, 196757), (143, 89435), (155, 82511), (341, 37505), (403, 31735), (577, 22165), (715, 17887), (1705, 7501), (2015, 6347), (2885, 4433)]