12821900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1409}}^1$

素因数の和:1443

約数の個数: 72

約数和(自身を含む): 34268640

約数和(自身を除く): 21446740

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1409, 1820, 2275, 2818, 4550, 5636, 7045, 9100, 9863, 14090, 18317, 19726, 28180, 35225, 36634, 39452, 49315, 70450, 73268, 91585, 98630, 128219, 140900, 183170, 197260, 246575, 256438, 366340, 457925, 493150, 512876, 641095, 915850, 986300, 1282190, 1831700, 2564380, 3205475, 6410950, 12821900]

約数ペア:

[(1, 12821900), (2, 6410950), (4, 3205475), (5, 2564380), (7, 1831700), (10, 1282190), (13, 986300), (14, 915850), (20, 641095), (25, 512876), (26, 493150), (28, 457925), (35, 366340), (50, 256438), (52, 246575), (65, 197260), (70, 183170), (91, 140900), (100, 128219), (130, 98630), (140, 91585), (175, 73268), (182, 70450), (260, 49315), (325, 39452), (350, 36634), (364, 35225), (455, 28180), (650, 19726), (700, 18317), (910, 14090), (1300, 9863), (1409, 9100), (1820, 7045), (2275, 5636), (2818, 4550)]