19821160

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3617}}^1$

素因数の和:3765

約数の個数: 32

約数和(自身を含む): 44935560

約数和(自身を除く): 25114400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3617, 5480, 7234, 14468, 18085, 28936, 36170, 72340, 144680, 495529, 991058, 1982116, 2477645, 3964232, 4955290, 9910580, 19821160]

約数ペア:

[(1, 19821160), (2, 9910580), (4, 4955290), (5, 3964232), (8, 2477645), (10, 1982116), (20, 991058), (40, 495529), (137, 144680), (274, 72340), (548, 36170), (685, 28936), (1096, 18085), (1370, 14468), (2740, 7234), (3617, 5480)]