81638128

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1151}}^1$

素因数の和:1214

約数の個数: 80

約数和(自身を含む): 191987712

約数和(自身を除く): 110349584

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 176, 208, 248, 286, 341, 403, 496, 572, 682, 806, 1144, 1151, 1364, 1612, 2288, 2302, 2728, 3224, 4433, 4604, 5456, 6448, 8866, 9208, 12661, 14963, 17732, 18416, 25322, 29926, 35464, 35681, 50644, 59852, 70928, 71362, 101288, 119704, 142724, 164593, 202576, 239408, 285448, 329186, 392491, 463853, 570896, 658372, 784982, 927706, 1316744, 1569964, 1855412, 2633488, 3139928, 3710824, 5102383, 6279856, 7421648, 10204766, 20409532, 40819064, 81638128]

約数ペア:

[(1, 81638128), (2, 40819064), (4, 20409532), (8, 10204766), (11, 7421648), (13, 6279856), (16, 5102383), (22, 3710824), (26, 3139928), (31, 2633488), (44, 1855412), (52, 1569964), (62, 1316744), (88, 927706), (104, 784982), (124, 658372), (143, 570896), (176, 463853), (208, 392491), (248, 329186), (286, 285448), (341, 239408), (403, 202576), (496, 164593), (572, 142724), (682, 119704), (806, 101288), (1144, 71362), (1151, 70928), (1364, 59852), (1612, 50644), (2288, 35681), (2302, 35464), (2728, 29926), (3224, 25322), (4433, 18416), (4604, 17732), (5456, 14963), (6448, 12661), (8866, 9208)]