81639074

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:638

約数の個数: 32

約数和(自身を含む): 136857600

約数和(自身を除く): 55218526

約数列:

[1, 2, 11, 22, 79, 107, 158, 214, 439, 869, 878, 1177, 1738, 2354, 4829, 8453, 9658, 16906, 34681, 46973, 69362, 92983, 93946, 185966, 381491, 516703, 762982, 1033406, 3710867, 7421734, 40819537, 81639074]

約数ペア:

[(1, 81639074), (2, 40819537), (11, 7421734), (22, 3710867), (79, 1033406), (107, 762982), (158, 516703), (214, 381491), (439, 185966), (869, 93946), (878, 92983), (1177, 69362), (1738, 46973), (2354, 34681), (4829, 16906), (8453, 9658)]