2785880

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 6315840

約数和(自身を除く): 3529960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 271, 514, 542, 1028, 1084, 1285, 1355, 2056, 2168, 2570, 2710, 5140, 5420, 10280, 10840, 69647, 139294, 278588, 348235, 557176, 696470, 1392940, 2785880]

約数ペア:

[(1, 2785880), (2, 1392940), (4, 696470), (5, 557176), (8, 348235), (10, 278588), (20, 139294), (40, 69647), (257, 10840), (271, 10280), (514, 5420), (542, 5140), (1028, 2710), (1084, 2570), (1285, 2168), (1355, 2056)]