20874690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1693}}^1$

素因数の和:1843

約数の個数: 48

約数和(自身を含む): 54702648

約数和(自身を除く): 33827958

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 685, 822, 1233, 1370, 1693, 2055, 2466, 3386, 4110, 5079, 6165, 8465, 10158, 12330, 15237, 16930, 25395, 30474, 50790, 76185, 152370, 231941, 463882, 695823, 1159705, 1391646, 2087469, 2319410, 3479115, 4174938, 6958230, 10437345, 20874690]

約数ペア:

[(1, 20874690), (2, 10437345), (3, 6958230), (5, 4174938), (6, 3479115), (9, 2319410), (10, 2087469), (15, 1391646), (18, 1159705), (30, 695823), (45, 463882), (90, 231941), (137, 152370), (274, 76185), (411, 50790), (685, 30474), (822, 25395), (1233, 16930), (1370, 15237), (1693, 12330), (2055, 10158), (2466, 8465), (3386, 6165), (4110, 5079)]