20189774915

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1\times {\mathrm{1361}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 25241673600

約数和(自身を除く): 5051898685

約数列:

[1, 5, 29, 145, 263, 389, 1315, 1361, 1945, 6805, 7627, 11281, 38135, 39469, 56405, 102307, 197345, 357943, 511535, 529429, 1789715, 2647145, 2966903, 10380347, 14834515, 15353441, 51901735, 76767205, 139239827, 696199135, 4037954983, 20189774915]

約数ペア:

[(1, 20189774915), (5, 4037954983), (29, 696199135), (145, 139239827), (263, 76767205), (389, 51901735), (1315, 15353441), (1361, 14834515), (1945, 10380347), (6805, 2966903), (7627, 2647145), (11281, 1789715), (38135, 529429), (39469, 511535), (56405, 357943), (102307, 197345)]