20181281528

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{5323}}^1\times {\mathrm{24943}}^1$

素因数の和:30291

約数の個数: 32

約数和(自身を含む): 39840556800

約数和(自身を除く): 19659275272

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 5323, 10646, 21292, 24943, 42584, 49886, 99772, 101137, 199544, 202274, 404548, 473917, 809096, 947834, 1895668, 3791336, 132771589, 265543178, 531086356, 1062172712, 2522660191, 5045320382, 10090640764, 20181281528]

約数ペア:

[(1, 20181281528), (2, 10090640764), (4, 5045320382), (8, 2522660191), (19, 1062172712), (38, 531086356), (76, 265543178), (152, 132771589), (5323, 3791336), (10646, 1895668), (21292, 947834), (24943, 809096), (42584, 473917), (49886, 404548), (99772, 202274), (101137, 199544)]