64912780

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{5827}}^1$

素因数の和:6393

約数の個数: 24

約数和(自身を含む): 136585008

約数和(自身を除く): 71672228

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 5827, 11140, 11654, 23308, 29135, 58270, 116540, 3245639, 6491278, 12982556, 16228195, 32456390, 64912780]

約数ペア:

[(1, 64912780), (2, 32456390), (4, 16228195), (5, 12982556), (10, 6491278), (20, 3245639), (557, 116540), (1114, 58270), (2228, 29135), (2785, 23308), (5570, 11654), (5827, 11140)]