19984756960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17843533}}^1$

素因数の和:17843555

約数の個数: 48

約数和(自身を含む): 53958846816

約数和(自身を除く): 33974089856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17843533, 35687066, 71374132, 89217665, 124904731, 142748264, 178435330, 249809462, 285496528, 356870660, 499618924, 570993056, 624523655, 713741320, 999237848, 1249047310, 1427482640, 1998475696, 2498094620, 2854965280, 3996951392, 4996189240, 9992378480, 19984756960]

約数ペア:

[(1, 19984756960), (2, 9992378480), (4, 4996189240), (5, 3996951392), (7, 2854965280), (8, 2498094620), (10, 1998475696), (14, 1427482640), (16, 1249047310), (20, 999237848), (28, 713741320), (32, 624523655), (35, 570993056), (40, 499618924), (56, 356870660), (70, 285496528), (80, 249809462), (112, 178435330), (140, 142748264), (160, 124904731), (224, 89217665), (280, 71374132), (560, 35687066), (1120, 17843533)]