20104108960

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9665437}}^1$

素因数の和:9665465

約数の個数: 48

約数和(自身を含む): 51149497896

約数和(自身を除く): 31045388936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9665437, 19330874, 38661748, 48327185, 77323496, 96654370, 125650681, 154646992, 193308740, 251301362, 309293984, 386617480, 502602724, 628253405, 773234960, 1005205448, 1256506810, 1546469920, 2010410896, 2513013620, 4020821792, 5026027240, 10052054480, 20104108960]

約数ペア:

[(1, 20104108960), (2, 10052054480), (4, 5026027240), (5, 4020821792), (8, 2513013620), (10, 2010410896), (13, 1546469920), (16, 1256506810), (20, 1005205448), (26, 773234960), (32, 628253405), (40, 502602724), (52, 386617480), (65, 309293984), (80, 251301362), (104, 193308740), (130, 154646992), (160, 125650681), (208, 96654370), (260, 77323496), (416, 48327185), (520, 38661748), (1040, 19330874), (2080, 9665437)]