81607456

素因数分解:

$2^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2621}}^1$

素因数の和:2777

約数の個数: 48

約数和(自身を含む): 185008320

約数和(自身を除く): 103400864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 139, 224, 278, 556, 973, 1112, 1946, 2224, 2621, 3892, 4448, 5242, 7784, 10484, 15568, 18347, 20968, 31136, 36694, 41936, 73388, 83872, 146776, 293552, 364319, 587104, 728638, 1457276, 2550233, 2914552, 5100466, 5829104, 10200932, 11658208, 20401864, 40803728, 81607456]

約数ペア:

[(1, 81607456), (2, 40803728), (4, 20401864), (7, 11658208), (8, 10200932), (14, 5829104), (16, 5100466), (28, 2914552), (32, 2550233), (56, 1457276), (112, 728638), (139, 587104), (224, 364319), (278, 293552), (556, 146776), (973, 83872), (1112, 73388), (1946, 41936), (2224, 36694), (2621, 31136), (3892, 20968), (4448, 18347), (5242, 15568), (7784, 10484)]