890678635

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{1979}}^1$

素因数の和:2176

約数の個数: 48

約数和(自身を含む): 1365154560

約数和(自身を除く): 474475925

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 167, 245, 385, 539, 835, 1169, 1837, 1979, 2695, 5845, 8183, 9185, 9895, 12859, 13853, 21769, 40915, 64295, 69265, 90013, 96971, 108845, 152383, 330493, 450065, 484855, 761915, 1066681, 1652465, 2313451, 3635423, 5333405, 11567255, 16194157, 18177115, 25447961, 80970785, 127239805, 178135727, 890678635]

約数ペア:

[(1, 890678635), (5, 178135727), (7, 127239805), (11, 80970785), (35, 25447961), (49, 18177115), (55, 16194157), (77, 11567255), (167, 5333405), (245, 3635423), (385, 2313451), (539, 1652465), (835, 1066681), (1169, 761915), (1837, 484855), (1979, 450065), (2695, 330493), (5845, 152383), (8183, 108845), (9185, 96971), (9895, 90013), (12859, 69265), (13853, 64295), (21769, 40915)]