639752436

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{243437}}^1$

素因数の和:243520

約数の個数: 36

約数和(自身を含む): 1639311492

約数和(自身を除く): 999559056

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 146, 219, 292, 438, 657, 876, 1314, 2628, 243437, 486874, 730311, 973748, 1460622, 2190933, 2921244, 4381866, 8763732, 17770901, 35541802, 53312703, 71083604, 106625406, 159938109, 213250812, 319876218, 639752436]

約数ペア:

[(1, 639752436), (2, 319876218), (3, 213250812), (4, 159938109), (6, 106625406), (9, 71083604), (12, 53312703), (18, 35541802), (36, 17770901), (73, 8763732), (146, 4381866), (219, 2921244), (292, 2190933), (438, 1460622), (657, 973748), (876, 730311), (1314, 486874), (2628, 243437)]