198989920

素因数分解:

$2^5\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2833}}^1$

素因数の和:3287

約数の個数: 48

約数和(自身を含む): 471350880

約数和(自身を除く): 272360960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 439, 878, 1756, 2195, 2833, 3512, 4390, 5666, 7024, 8780, 11332, 14048, 14165, 17560, 22664, 28330, 35120, 45328, 56660, 70240, 90656, 113320, 226640, 453280, 1243687, 2487374, 4974748, 6218435, 9949496, 12436870, 19898992, 24873740, 39797984, 49747480, 99494960, 198989920]

約数ペア:

[(1, 198989920), (2, 99494960), (4, 49747480), (5, 39797984), (8, 24873740), (10, 19898992), (16, 12436870), (20, 9949496), (32, 6218435), (40, 4974748), (80, 2487374), (160, 1243687), (439, 453280), (878, 226640), (1756, 113320), (2195, 90656), (2833, 70240), (3512, 56660), (4390, 45328), (5666, 35120), (7024, 28330), (8780, 22664), (11332, 17560), (14048, 14165)]