155964560

素因数分解:

$2^4\times 5^1\times {\mathrm{1949557}}^1$

素因数の和:1949570

約数の個数: 20

約数和(自身を含む): 362617788

約数和(自身を除く): 206653228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1949557, 3899114, 7798228, 9747785, 15596456, 19495570, 31192912, 38991140, 77982280, 155964560]

約数ペア:

[(1, 155964560), (2, 77982280), (4, 38991140), (5, 31192912), (8, 19495570), (10, 15596456), (16, 9747785), (20, 7798228), (40, 3899114), (80, 1949557)]