81585088

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:454

約数の個数: 84

約数和(自身を含む): 184998360

約数和(自身を除く): 103413272

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 152, 169, 208, 247, 304, 338, 397, 416, 494, 608, 676, 794, 832, 988, 1216, 1352, 1588, 1976, 2704, 3176, 3211, 3952, 5161, 5408, 6352, 6422, 7543, 7904, 10322, 10816, 12704, 12844, 15086, 15808, 20644, 25408, 25688, 30172, 41288, 51376, 60344, 67093, 82576, 98059, 102752, 120688, 134186, 165152, 196118, 205504, 241376, 268372, 330304, 392236, 482752, 536744, 784472, 1073488, 1274767, 1568944, 2146976, 2549534, 3137888, 4293952, 5099068, 6275776, 10198136, 20396272, 40792544, 81585088]

約数ペア:

[(1, 81585088), (2, 40792544), (4, 20396272), (8, 10198136), (13, 6275776), (16, 5099068), (19, 4293952), (26, 3137888), (32, 2549534), (38, 2146976), (52, 1568944), (64, 1274767), (76, 1073488), (104, 784472), (152, 536744), (169, 482752), (208, 392236), (247, 330304), (304, 268372), (338, 241376), (397, 205504), (416, 196118), (494, 165152), (608, 134186), (676, 120688), (794, 102752), (832, 98059), (988, 82576), (1216, 67093), (1352, 60344), (1588, 51376), (1976, 41288), (2704, 30172), (3176, 25688), (3211, 25408), (3952, 20644), (5161, 15808), (5408, 15086), (6352, 12844), (6422, 12704), (7543, 10816), (7904, 10322)]