81859120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1151}}^1$

素因数の和:1298

約数の個数: 80

約数和(自身を含む): 219414528

約数和(自身を除く): 137555408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 889, 1016, 1151, 1270, 1778, 2032, 2302, 2540, 3556, 4445, 4604, 5080, 5755, 7112, 8057, 8890, 9208, 10160, 11510, 14224, 16114, 17780, 18416, 23020, 32228, 35560, 40285, 46040, 64456, 71120, 80570, 92080, 128912, 146177, 161140, 292354, 322280, 584708, 644560, 730885, 1023239, 1169416, 1461770, 2046478, 2338832, 2923540, 4092956, 5116195, 5847080, 8185912, 10232390, 11694160, 16371824, 20464780, 40929560, 81859120]

約数ペア:

[(1, 81859120), (2, 40929560), (4, 20464780), (5, 16371824), (7, 11694160), (8, 10232390), (10, 8185912), (14, 5847080), (16, 5116195), (20, 4092956), (28, 2923540), (35, 2338832), (40, 2046478), (56, 1461770), (70, 1169416), (80, 1023239), (112, 730885), (127, 644560), (140, 584708), (254, 322280), (280, 292354), (508, 161140), (560, 146177), (635, 128912), (889, 92080), (1016, 80570), (1151, 71120), (1270, 64456), (1778, 46040), (2032, 40285), (2302, 35560), (2540, 32228), (3556, 23020), (4445, 18416), (4604, 17780), (5080, 16114), (5755, 14224), (7112, 11510), (8057, 10160), (8890, 9208)]