126891280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{36887}}^1$

素因数の和:36943

約数の個数: 40

約数和(自身を含む): 301891392

約数和(自身を除く): 175000112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 36887, 73774, 147548, 184435, 295096, 368870, 590192, 737740, 1475480, 1586141, 2950960, 3172282, 6344564, 7930705, 12689128, 15861410, 25378256, 31722820, 63445640, 126891280]

約数ペア:

[(1, 126891280), (2, 63445640), (4, 31722820), (5, 25378256), (8, 15861410), (10, 12689128), (16, 7930705), (20, 6344564), (40, 3172282), (43, 2950960), (80, 1586141), (86, 1475480), (172, 737740), (215, 590192), (344, 368870), (430, 295096), (688, 184435), (860, 147548), (1720, 73774), (3440, 36887)]