81405272

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{3169}}^1$

素因数の和:3220

約数の個数: 48

約数和(自身を含む): 174033000

約数和(自身を除く): 92627728

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 169, 247, 338, 494, 676, 988, 1352, 1976, 3169, 3211, 6338, 6422, 12676, 12844, 25352, 25688, 41197, 60211, 82394, 120422, 164788, 240844, 329576, 481688, 535561, 782743, 1071122, 1565486, 2142244, 3130972, 4284488, 6261944, 10175659, 20351318, 40702636, 81405272]

約数ペア:

[(1, 81405272), (2, 40702636), (4, 20351318), (8, 10175659), (13, 6261944), (19, 4284488), (26, 3130972), (38, 2142244), (52, 1565486), (76, 1071122), (104, 782743), (152, 535561), (169, 481688), (247, 329576), (338, 240844), (494, 164788), (676, 120422), (988, 82394), (1352, 60211), (1976, 41197), (3169, 25688), (3211, 25352), (6338, 12844), (6422, 12676)]