639968502

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{1123}}^1$

素因数の和:1333

約数の個数: 64

約数和(自身を含む): 1402320384

約数和(自身を除く): 762351882

約数列:

[1, 2, 3, 6, 17, 34, 37, 51, 74, 102, 111, 151, 222, 302, 453, 629, 906, 1123, 1258, 1887, 2246, 2567, 3369, 3774, 5134, 5587, 6738, 7701, 11174, 15402, 16761, 19091, 33522, 38182, 41551, 57273, 83102, 94979, 114546, 124653, 169573, 189958, 249306, 284937, 339146, 508719, 569874, 706367, 1017438, 1412734, 2119101, 2882741, 4238202, 5765482, 6274201, 8648223, 12548402, 17296446, 18822603, 37645206, 106661417, 213322834, 319984251, 639968502]

約数ペア:

[(1, 639968502), (2, 319984251), (3, 213322834), (6, 106661417), (17, 37645206), (34, 18822603), (37, 17296446), (51, 12548402), (74, 8648223), (102, 6274201), (111, 5765482), (151, 4238202), (222, 2882741), (302, 2119101), (453, 1412734), (629, 1017438), (906, 706367), (1123, 569874), (1258, 508719), (1887, 339146), (2246, 284937), (2567, 249306), (3369, 189958), (3774, 169573), (5134, 124653), (5587, 114546), (6738, 94979), (7701, 83102), (11174, 57273), (15402, 41551), (16761, 38182), (19091, 33522)]