16181920

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5323}}^1$

素因数の和:5357

約数の個数: 48

約数和(自身を含む): 40249440

約数和(自身を除く): 24067520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 5323, 10646, 21292, 26615, 42584, 53230, 85168, 101137, 106460, 170336, 202274, 212920, 404548, 425840, 505685, 809096, 851680, 1011370, 1618192, 2022740, 3236384, 4045480, 8090960, 16181920]

約数ペア:

[(1, 16181920), (2, 8090960), (4, 4045480), (5, 3236384), (8, 2022740), (10, 1618192), (16, 1011370), (19, 851680), (20, 809096), (32, 505685), (38, 425840), (40, 404548), (76, 212920), (80, 202274), (95, 170336), (152, 106460), (160, 101137), (190, 85168), (304, 53230), (380, 42584), (608, 26615), (760, 21292), (1520, 10646), (3040, 5323)]