20876660080

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3303269}}^1$

素因数の和:3303361

約数の個数: 40

約数和(自身を含む): 49152657600

約数和(自身を除く): 28275997520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 3303269, 6606538, 13213076, 16516345, 26426152, 33032690, 52852304, 66065380, 132130760, 260958251, 264261520, 521916502, 1043833004, 1304791255, 2087666008, 2609582510, 4175332016, 5219165020, 10438330040, 20876660080]

約数ペア:

[(1, 20876660080), (2, 10438330040), (4, 5219165020), (5, 4175332016), (8, 2609582510), (10, 2087666008), (16, 1304791255), (20, 1043833004), (40, 521916502), (79, 264261520), (80, 260958251), (158, 132130760), (316, 66065380), (395, 52852304), (632, 33032690), (790, 26426152), (1264, 16516345), (1580, 13213076), (3160, 6606538), (6320, 3303269)]