2781584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:375

約数の個数: 40

約数和(自身を含む): 5957952

約数和(自身を除く): 3176368

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 311, 344, 559, 622, 688, 1118, 1244, 2236, 2488, 4043, 4472, 4976, 8086, 8944, 13373, 16172, 26746, 32344, 53492, 64688, 106984, 173849, 213968, 347698, 695396, 1390792, 2781584]

約数ペア:

[(1, 2781584), (2, 1390792), (4, 695396), (8, 347698), (13, 213968), (16, 173849), (26, 106984), (43, 64688), (52, 53492), (86, 32344), (104, 26746), (172, 16172), (208, 13373), (311, 8944), (344, 8086), (559, 4976), (622, 4472), (688, 4043), (1118, 2488), (1244, 2236)]