20178039824

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{934861}}^1$

素因数の和:934959

約数の個数: 40

約数和(自身を含む): 41732239680

約数和(自身を除く): 21554199856

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 142, 152, 284, 304, 568, 1136, 1349, 2698, 5396, 10792, 21584, 934861, 1869722, 3739444, 7478888, 14957776, 17762359, 35524718, 66375131, 71049436, 132750262, 142098872, 265500524, 284197744, 531001048, 1062002096, 1261127489, 2522254978, 5044509956, 10089019912, 20178039824]

約数ペア:

[(1, 20178039824), (2, 10089019912), (4, 5044509956), (8, 2522254978), (16, 1261127489), (19, 1062002096), (38, 531001048), (71, 284197744), (76, 265500524), (142, 142098872), (152, 132750262), (284, 71049436), (304, 66375131), (568, 35524718), (1136, 17762359), (1349, 14957776), (2698, 7478888), (5396, 3739444), (10792, 1869722), (21584, 934861)]