19773440

素因数分解:

$2^{11}\times 5^1\times {\mathrm{1931}}^1$

素因数の和:1958

約数の個数: 48

約数和(自身を含む): 47469240

約数和(自身を除く): 27695800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1931, 2048, 2560, 3862, 5120, 7724, 9655, 10240, 15448, 19310, 30896, 38620, 61792, 77240, 123584, 154480, 247168, 308960, 494336, 617920, 988672, 1235840, 1977344, 2471680, 3954688, 4943360, 9886720, 19773440]

約数ペア:

[(1, 19773440), (2, 9886720), (4, 4943360), (5, 3954688), (8, 2471680), (10, 1977344), (16, 1235840), (20, 988672), (32, 617920), (40, 494336), (64, 308960), (80, 247168), (128, 154480), (160, 123584), (256, 77240), (320, 61792), (512, 38620), (640, 30896), (1024, 19310), (1280, 15448), (1931, 10240), (2048, 9655), (2560, 7724), (3862, 5120)]