1289296

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1390

約数の個数: 20

約数和(自身を含む): 2540884

約数和(自身を除く): 1251588

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 1321, 2642, 5284, 10568, 21136, 80581, 161162, 322324, 644648, 1289296]

約数ペア:

[(1, 1289296), (2, 644648), (4, 322324), (8, 161162), (16, 80581), (61, 21136), (122, 10568), (244, 5284), (488, 2642), (976, 1321)]