20798907844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{512137}}^1$

素因数の和:512236

約数の個数: 48

約数和(自身を含む): 43363748736

約数和(自身を除く): 22564840892

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 71, 142, 143, 284, 286, 572, 781, 923, 1562, 1846, 3124, 3692, 10153, 20306, 40612, 512137, 1024274, 2048548, 5633507, 6657781, 11267014, 13315562, 22534028, 26631124, 36361727, 72723454, 73235591, 145446908, 146471182, 292942364, 399978997, 472702451, 799957994, 945404902, 1599915988, 1890809804, 5199726961, 10399453922, 20798907844]

約数ペア:

[(1, 20798907844), (2, 10399453922), (4, 5199726961), (11, 1890809804), (13, 1599915988), (22, 945404902), (26, 799957994), (44, 472702451), (52, 399978997), (71, 292942364), (142, 146471182), (143, 145446908), (284, 73235591), (286, 72723454), (572, 36361727), (781, 26631124), (923, 22534028), (1562, 13315562), (1846, 11267014), (3124, 6657781), (3692, 5633507), (10153, 2048548), (20306, 1024274), (40612, 512137)]