1235840

素因数分解:

$2^7\times 5^1\times {\mathrm{1931}}^1$

素因数の和:1950

約数の個数: 32

約数和(自身を含む): 2955960

約数和(自身を除く): 1720120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1931, 3862, 7724, 9655, 15448, 19310, 30896, 38620, 61792, 77240, 123584, 154480, 247168, 308960, 617920, 1235840]

約数ペア:

[(1, 1235840), (2, 617920), (4, 308960), (5, 247168), (8, 154480), (10, 123584), (16, 77240), (20, 61792), (32, 38620), (40, 30896), (64, 19310), (80, 15448), (128, 9655), (160, 7724), (320, 3862), (640, 1931)]