649120

素因数分解:

$2^5\times 5^1\times {\mathrm{4057}}^1$

素因数の和:4072

約数の個数: 24

約数和(自身を含む): 1533924

約数和(自身を除く): 884804

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 4057, 8114, 16228, 20285, 32456, 40570, 64912, 81140, 129824, 162280, 324560, 649120]

約数ペア:

[(1, 649120), (2, 324560), (4, 162280), (5, 129824), (8, 81140), (10, 64912), (16, 40570), (20, 32456), (32, 20285), (40, 16228), (80, 8114), (160, 4057)]