31820305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 43400448

約数和(自身を除く): 11580143

約数列:

[1, 5, 11, 41, 55, 103, 137, 205, 451, 515, 685, 1133, 1507, 2255, 4223, 5617, 5665, 7535, 14111, 21115, 28085, 46453, 61787, 70555, 155221, 232265, 308935, 578551, 776105, 2892755, 6364061, 31820305]

約数ペア:

[(1, 31820305), (5, 6364061), (11, 2892755), (41, 776105), (55, 578551), (103, 308935), (137, 232265), (205, 155221), (451, 70555), (515, 61787), (685, 46453), (1133, 28085), (1507, 21115), (2255, 14111), (4223, 7535), (5617, 5665)]