16688980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10837}}^1$

素因数の和:10864

約数の個数: 48

約数和(自身を含む): 43698816

約数和(自身を除く): 27009836

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 10837, 21674, 43348, 54185, 75859, 108370, 119207, 151718, 216740, 238414, 303436, 379295, 476828, 596035, 758590, 834449, 1192070, 1517180, 1668898, 2384140, 3337796, 4172245, 8344490, 16688980]

約数ペア:

[(1, 16688980), (2, 8344490), (4, 4172245), (5, 3337796), (7, 2384140), (10, 1668898), (11, 1517180), (14, 1192070), (20, 834449), (22, 758590), (28, 596035), (35, 476828), (44, 379295), (55, 303436), (70, 238414), (77, 216740), (110, 151718), (140, 119207), (154, 108370), (220, 75859), (308, 54185), (385, 43348), (770, 21674), (1540, 10837)]