1277156720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2280637}}^1$

素因数の和:2280657

約数の個数: 40

約数和(自身を含む): 3393589344

約数和(自身を除く): 2116432624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2280637, 4561274, 9122548, 11403185, 15964459, 18245096, 22806370, 31928918, 36490192, 45612740, 63857836, 79822295, 91225480, 127715672, 159644590, 182450960, 255431344, 319289180, 638578360, 1277156720]

約数ペア:

[(1, 1277156720), (2, 638578360), (4, 319289180), (5, 255431344), (7, 182450960), (8, 159644590), (10, 127715672), (14, 91225480), (16, 79822295), (20, 63857836), (28, 45612740), (35, 36490192), (40, 31928918), (56, 22806370), (70, 18245096), (80, 15964459), (112, 11403185), (140, 9122548), (280, 4561274), (560, 2280637)]