1990403715

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1\times {\mathrm{7187}}^1$

素因数の和:7731

約数の個数: 32

約数和(自身を含む): 3277728000

約数和(自身を除く): 1287324285

約数列:

[1, 3, 5, 15, 37, 111, 185, 499, 555, 1497, 2495, 7187, 7485, 18463, 21561, 35935, 55389, 92315, 107805, 265919, 276945, 797757, 1329595, 3586313, 3988785, 10758939, 17931565, 53794695, 132693581, 398080743, 663467905, 1990403715]

約数ペア:

[(1, 1990403715), (3, 663467905), (5, 398080743), (15, 132693581), (37, 53794695), (111, 17931565), (185, 10758939), (499, 3988785), (555, 3586313), (1497, 1329595), (2495, 797757), (7187, 276945), (7485, 265919), (18463, 107805), (21561, 92315), (35935, 55389)]