20291267128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{719}}^1\times {\mathrm{320699}}^1$

素因数の和:321435

約数の個数: 32

約数和(自身を含む): 41562720000

約数和(自身を除く): 21271452872

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 719, 1438, 2876, 5752, 7909, 15818, 31636, 63272, 320699, 641398, 1282796, 2565592, 3527689, 7055378, 14110756, 28221512, 230582581, 461165162, 922330324, 1844660648, 2536408391, 5072816782, 10145633564, 20291267128]

約数ペア:

[(1, 20291267128), (2, 10145633564), (4, 5072816782), (8, 2536408391), (11, 1844660648), (22, 922330324), (44, 461165162), (88, 230582581), (719, 28221512), (1438, 14110756), (2876, 7055378), (5752, 3527689), (7909, 2565592), (15818, 1282796), (31636, 641398), (63272, 320699)]