256137328

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{11867}}^1$

素因数の和:11965

約数の個数: 40

約数和(自身を含む): 529787520

約数和(自身を除く): 273650192

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 142, 152, 284, 304, 568, 1136, 1349, 2698, 5396, 10792, 11867, 21584, 23734, 47468, 94936, 189872, 225473, 450946, 842557, 901892, 1685114, 1803784, 3370228, 3607568, 6740456, 13480912, 16008583, 32017166, 64034332, 128068664, 256137328]

約数ペア:

[(1, 256137328), (2, 128068664), (4, 64034332), (8, 32017166), (16, 16008583), (19, 13480912), (38, 6740456), (71, 3607568), (76, 3370228), (142, 1803784), (152, 1685114), (284, 901892), (304, 842557), (568, 450946), (1136, 225473), (1349, 189872), (2698, 94936), (5396, 47468), (10792, 23734), (11867, 21584)]