128785904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19973}}^1$

素因数の和:20025

約数の個数: 40

約数和(自身を含む): 277398912

約数和(自身を除く): 148613008

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 19973, 39946, 79892, 159784, 259649, 319568, 519298, 619163, 1038596, 1238326, 2077192, 2476652, 4154384, 4953304, 8049119, 9906608, 16098238, 32196476, 64392952, 128785904]

約数ペア:

[(1, 128785904), (2, 64392952), (4, 32196476), (8, 16098238), (13, 9906608), (16, 8049119), (26, 4953304), (31, 4154384), (52, 2476652), (62, 2077192), (104, 1238326), (124, 1038596), (208, 619163), (248, 519298), (403, 319568), (496, 259649), (806, 159784), (1612, 79892), (3224, 39946), (6448, 19973)]