79820720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{142537}}^1$

素因数の和:142557

約数の個数: 40

約数和(自身を含む): 212096544

約数和(自身を除く): 132275824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 142537, 285074, 570148, 712685, 997759, 1140296, 1425370, 1995518, 2280592, 2850740, 3991036, 4988795, 5701480, 7982072, 9977590, 11402960, 15964144, 19955180, 39910360, 79820720]

約数ペア:

[(1, 79820720), (2, 39910360), (4, 19955180), (5, 15964144), (7, 11402960), (8, 9977590), (10, 7982072), (14, 5701480), (16, 4988795), (20, 3991036), (28, 2850740), (35, 2280592), (40, 1995518), (56, 1425370), (70, 1140296), (80, 997759), (112, 712685), (140, 570148), (280, 285074), (560, 142537)]