16780480

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1279}}^1$

素因数の和:1337

約数の個数: 56

約数和(自身を含む): 40965120

約数和(自身を除く): 24184640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1279, 1312, 1640, 2558, 2624, 3280, 5116, 6395, 6560, 10232, 12790, 13120, 20464, 25580, 40928, 51160, 52439, 81856, 102320, 104878, 204640, 209756, 262195, 409280, 419512, 524390, 839024, 1048780, 1678048, 2097560, 3356096, 4195120, 8390240, 16780480]

約数ペア:

[(1, 16780480), (2, 8390240), (4, 4195120), (5, 3356096), (8, 2097560), (10, 1678048), (16, 1048780), (20, 839024), (32, 524390), (40, 419512), (41, 409280), (64, 262195), (80, 209756), (82, 204640), (160, 104878), (164, 102320), (205, 81856), (320, 52439), (328, 51160), (410, 40928), (656, 25580), (820, 20464), (1279, 13120), (1312, 12790), (1640, 10232), (2558, 6560), (2624, 6395), (3280, 5116)]