16811130040

素因数分解:

$2^3\times 5^1\times {\mathrm{1979}}^1\times {\mathrm{212369}}^1$

素因数の和:214359

約数の個数: 32

約数和(自身を含む): 37844334000

約数和(自身を除く): 21033203960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1979, 3958, 7916, 9895, 15832, 19790, 39580, 79160, 212369, 424738, 849476, 1061845, 1698952, 2123690, 4247380, 8494760, 420278251, 840556502, 1681113004, 2101391255, 3362226008, 4202782510, 8405565020, 16811130040]

約数ペア:

[(1, 16811130040), (2, 8405565020), (4, 4202782510), (5, 3362226008), (8, 2101391255), (10, 1681113004), (20, 840556502), (40, 420278251), (1979, 8494760), (3958, 4247380), (7916, 2123690), (9895, 1698952), (15832, 1061845), (19790, 849476), (39580, 424738), (79160, 212369)]