19327983920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{137507}}^1$

素因数の和:137778

約数の個数: 80

約数和(自身を含む): 51562199808

約数和(自身を除く): 32234215888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 502, 560, 1004, 1255, 1757, 2008, 2510, 3514, 4016, 5020, 7028, 8785, 10040, 14056, 17570, 20080, 28112, 35140, 70280, 137507, 140560, 275014, 550028, 687535, 962549, 1100056, 1375070, 1925098, 2200112, 2750140, 3850196, 4812745, 5500280, 7700392, 9625490, 11000560, 15400784, 19250980, 34514257, 38501960, 69028514, 77003920, 138057028, 172571285, 241599799, 276114056, 345142570, 483199598, 552228112, 690285140, 966399196, 1207998995, 1380570280, 1932798392, 2415997990, 2761140560, 3865596784, 4831995980, 9663991960, 19327983920]

約数ペア:

[(1, 19327983920), (2, 9663991960), (4, 4831995980), (5, 3865596784), (7, 2761140560), (8, 2415997990), (10, 1932798392), (14, 1380570280), (16, 1207998995), (20, 966399196), (28, 690285140), (35, 552228112), (40, 483199598), (56, 345142570), (70, 276114056), (80, 241599799), (112, 172571285), (140, 138057028), (251, 77003920), (280, 69028514), (502, 38501960), (560, 34514257), (1004, 19250980), (1255, 15400784), (1757, 11000560), (2008, 9625490), (2510, 7700392), (3514, 5500280), (4016, 4812745), (5020, 3850196), (7028, 2750140), (8785, 2200112), (10040, 1925098), (14056, 1375070), (17570, 1100056), (20080, 962549), (28112, 687535), (35140, 550028), (70280, 275014), (137507, 140560)]