20178954425

素因数分解:

$5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1\times {\mathrm{2269}}^1$

素因数の和:2946

約数の個数: 48

約数和(自身を含む): 28981180800

約数和(自身を除く): 8802226375

約数列:

[1, 5, 7, 25, 35, 89, 175, 445, 571, 623, 2225, 2269, 2855, 3115, 3997, 11345, 14275, 15575, 15883, 19985, 50819, 56725, 79415, 99925, 201941, 254095, 355733, 397075, 1009705, 1270475, 1295599, 1413587, 1778665, 5048525, 6477995, 7067935, 8893325, 9069193, 32389975, 35339675, 45345965, 115308311, 226729825, 576541555, 807158177, 2882707775, 4035790885, 20178954425]

約数ペア:

[(1, 20178954425), (5, 4035790885), (7, 2882707775), (25, 807158177), (35, 576541555), (89, 226729825), (175, 115308311), (445, 45345965), (571, 35339675), (623, 32389975), (2225, 9069193), (2269, 8893325), (2855, 7067935), (3115, 6477995), (3997, 5048525), (11345, 1778665), (14275, 1413587), (15575, 1295599), (15883, 1270475), (19985, 1009705), (50819, 397075), (56725, 355733), (79415, 254095), (99925, 201941)]