261854648

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{1723}}^1$

素因数の和:1908

約数の個数: 48

約数和(自身を含む): 543422040

約数和(自身を除く): 281567392

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 157, 242, 314, 484, 628, 968, 1256, 1723, 1727, 3446, 3454, 6892, 6908, 13784, 13816, 18953, 18997, 37906, 37994, 75812, 75988, 151624, 151976, 208483, 270511, 416966, 541022, 833932, 1082044, 1667864, 2164088, 2975621, 5951242, 11902484, 23804968, 32731831, 65463662, 130927324, 261854648]

約数ペア:

[(1, 261854648), (2, 130927324), (4, 65463662), (8, 32731831), (11, 23804968), (22, 11902484), (44, 5951242), (88, 2975621), (121, 2164088), (157, 1667864), (242, 1082044), (314, 833932), (484, 541022), (628, 416966), (968, 270511), (1256, 208483), (1723, 151976), (1727, 151624), (3446, 75988), (3454, 75812), (6892, 37994), (6908, 37906), (13784, 18997), (13816, 18953)]