1613960

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 3668760

約数和(自身を除く): 2054800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 257, 314, 514, 628, 785, 1028, 1256, 1285, 1570, 2056, 2570, 3140, 5140, 6280, 10280, 40349, 80698, 161396, 201745, 322792, 403490, 806980, 1613960]

約数ペア:

[(1, 1613960), (2, 806980), (4, 403490), (5, 322792), (8, 201745), (10, 161396), (20, 80698), (40, 40349), (157, 10280), (257, 6280), (314, 5140), (514, 3140), (628, 2570), (785, 2056), (1028, 1570), (1256, 1285)]