20409532

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1151}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 43352064

約数和(自身を除く): 22942532

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 124, 143, 286, 341, 403, 572, 682, 806, 1151, 1364, 1612, 2302, 4433, 4604, 8866, 12661, 14963, 17732, 25322, 29926, 35681, 50644, 59852, 71362, 142724, 164593, 329186, 392491, 463853, 658372, 784982, 927706, 1569964, 1855412, 5102383, 10204766, 20409532]

約数ペア:

[(1, 20409532), (2, 10204766), (4, 5102383), (11, 1855412), (13, 1569964), (22, 927706), (26, 784982), (31, 658372), (44, 463853), (52, 392491), (62, 329186), (124, 164593), (143, 142724), (286, 71362), (341, 59852), (403, 50644), (572, 35681), (682, 29926), (806, 25322), (1151, 17732), (1364, 14963), (1612, 12661), (2302, 8866), (4433, 4604)]