20420672

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{137}}^2$

素因数の和:303

約数の個数: 42

約数和(自身を含む): 43221402

約数和(自身を除く): 22800730

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 137, 272, 274, 544, 548, 1088, 1096, 2192, 2329, 4384, 4658, 8768, 9316, 18632, 18769, 37264, 37538, 74528, 75076, 149056, 150152, 300304, 319073, 600608, 638146, 1201216, 1276292, 2552584, 5105168, 10210336, 20420672]

約数ペア:

[(1, 20420672), (2, 10210336), (4, 5105168), (8, 2552584), (16, 1276292), (17, 1201216), (32, 638146), (34, 600608), (64, 319073), (68, 300304), (136, 150152), (137, 149056), (272, 75076), (274, 74528), (544, 37538), (548, 37264), (1088, 18769), (1096, 18632), (2192, 9316), (2329, 8768), (4384, 4658)]