890990155

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 1231396992

約数和(自身を除く): 340406837

約数列:

[1, 5, 11, 37, 53, 55, 121, 185, 265, 407, 583, 605, 751, 1961, 2035, 2915, 3755, 4477, 6413, 8261, 9805, 21571, 22385, 27787, 32065, 39803, 41305, 90871, 107855, 138935, 199015, 237281, 305657, 437833, 454355, 1186405, 1472711, 1528285, 2189165, 3362227, 4816163, 7363555, 16199821, 16811135, 24080815, 80999105, 178198031, 890990155]

約数ペア:

[(1, 890990155), (5, 178198031), (11, 80999105), (37, 24080815), (53, 16811135), (55, 16199821), (121, 7363555), (185, 4816163), (265, 3362227), (407, 2189165), (583, 1528285), (605, 1472711), (751, 1186405), (1961, 454355), (2035, 437833), (2915, 305657), (3755, 237281), (4477, 199015), (6413, 138935), (8261, 107855), (9805, 90871), (21571, 41305), (22385, 39803), (27787, 32065)]