12821840

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1931}}^1$

素因数の和:2027

約数の個数: 40

約数和(自身を含む): 30185568

約数和(自身を除く): 17363728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 1931, 3320, 3862, 6640, 7724, 9655, 15448, 19310, 30896, 38620, 77240, 154480, 160273, 320546, 641092, 801365, 1282184, 1602730, 2564368, 3205460, 6410920, 12821840]

約数ペア:

[(1, 12821840), (2, 6410920), (4, 3205460), (5, 2564368), (8, 1602730), (10, 1282184), (16, 801365), (20, 641092), (40, 320546), (80, 160273), (83, 154480), (166, 77240), (332, 38620), (415, 30896), (664, 19310), (830, 15448), (1328, 9655), (1660, 7724), (1931, 6640), (3320, 3862)]