51550960

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3271}}^1$

素因数の和:3481

約数の個数: 40

約数和(自身を含む): 120501216

約数和(自身を除く): 68950256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3271, 3940, 6542, 7880, 13084, 15760, 16355, 26168, 32710, 52336, 65420, 130840, 261680, 644387, 1288774, 2577548, 3221935, 5155096, 6443870, 10310192, 12887740, 25775480, 51550960]

約数ペア:

[(1, 51550960), (2, 25775480), (4, 12887740), (5, 10310192), (8, 6443870), (10, 5155096), (16, 3221935), (20, 2577548), (40, 1288774), (80, 644387), (197, 261680), (394, 130840), (788, 65420), (985, 52336), (1576, 32710), (1970, 26168), (3152, 16355), (3271, 15760), (3940, 13084), (6542, 7880)]