9618980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{541}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 23310336

約数和(自身を除く): 13691356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 541, 635, 889, 1082, 1270, 1778, 2164, 2540, 2705, 3556, 3787, 4445, 5410, 7574, 8890, 10820, 15148, 17780, 18935, 37870, 68707, 75740, 137414, 274828, 343535, 480949, 687070, 961898, 1374140, 1923796, 2404745, 4809490, 9618980]

約数ペア:

[(1, 9618980), (2, 4809490), (4, 2404745), (5, 1923796), (7, 1374140), (10, 961898), (14, 687070), (20, 480949), (28, 343535), (35, 274828), (70, 137414), (127, 75740), (140, 68707), (254, 37870), (508, 18935), (541, 17780), (635, 15148), (889, 10820), (1082, 8890), (1270, 7574), (1778, 5410), (2164, 4445), (2540, 3787), (2705, 3556)]