61572280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19991}}^1$

素因数の和:20020

約数の個数: 64

約数和(自身を含む): 172730880

約数和(自身を除く): 111158600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 19991, 39982, 79964, 99955, 139937, 159928, 199910, 219901, 279874, 399820, 439802, 559748, 699685, 799640, 879604, 1099505, 1119496, 1399370, 1539307, 1759208, 2199010, 2798740, 3078614, 4398020, 5597480, 6157228, 7696535, 8796040, 12314456, 15393070, 30786140, 61572280]

約数ペア:

[(1, 61572280), (2, 30786140), (4, 15393070), (5, 12314456), (7, 8796040), (8, 7696535), (10, 6157228), (11, 5597480), (14, 4398020), (20, 3078614), (22, 2798740), (28, 2199010), (35, 1759208), (40, 1539307), (44, 1399370), (55, 1119496), (56, 1099505), (70, 879604), (77, 799640), (88, 699685), (110, 559748), (140, 439802), (154, 399820), (220, 279874), (280, 219901), (308, 199910), (385, 159928), (440, 139937), (616, 99955), (770, 79964), (1540, 39982), (3080, 19991)]